Penetration fitting having compression seals and methods of installing and using the same

ABSTRACT

A penetration fitting assembly includes a pipe gasket having an annular portion defining a central opening and first and second stem portions extending in opposite directions from the annular portion, an inner ring assembly configured to surround the pipe gasket and including first and second inner ring halves, a ring gasket assembly configured to surround the inner ring assembly and including first and second ring gasket halves, a wall gasket, an outer ring assembly configured to surround the ring gasket assembly and including first and second outer ring halves, and a clamp configured to surround the outer ring assembly. When the penetration fitting assembly is installed, the outer ring assembly compresses the wall gasket against the wall of the sump, the clamp compresses the ring gasket assembly between the inner ring assembly and the outer ring assembly, and the clamp compresses the pipe gasket against the pipe or conduit.

CROSS-REFERENCES TO RELATED APPLICATION(S)

This application is a continuation of U.S. patent application Ser. No.16/983,825, filed Aug. 3, 2020, which claims priority to and the benefitof U.S. Provisional Patent Application No. 62/909,103, filed Oct. 1,2019, the entire contents of both of which are incorporated herein byreference.

BACKGROUND 1. Field

The present disclosure relates generally to penetration fittingsconfigured to form a seal between a wall of a containment sump and apipe or conduit passing through an opening in the wall.

2. Description of Related Art

Underground storage tank (UST) fueling sites, such as retail gasstations, typically include pipelines carrying a product such asgasoline from the storage tank to a product dispenser. A sump istypically provided beneath the product dispenser to contain any fuelreleased from failed equipment and thereby prevent environmentalcontamination (e.g., ground water contamination) under and around theservice station. Each pipeline extends through an aperture in the wallof the sump to a pipe fitting which connects the pipeline to the productdispenser.

The aperture in the sump wall through which the pipeline penetrates mustbe sealed to prevent the accumulated fuel in the sump from leakingthrough the aperture in the sump wall and into the surrounding ground(i.e., the backfill surrounding the sump). Accordingly, penetrationfittings are commonly provided to form seals between the sumps and theassociated pipelines to contain fuel leakage within the sumps. However,penetration fittings commonly include components, such as gaskets andboots, that are made from a material having a relatively low chemicalresistance that tend to degrade and fail quickly in the harsh sumpenvironment, and conventional penetration fittings require excavation ofthe backfill area surrounding the sump to replace worn components of thepenetration fitting. Additionally, many conventional replacementpenetration fittings require the use of adhesives, which may be messy,cumbersome, and time-consuming to apply. Furthermore, the use ofadhesives may make it difficult to ensure a fluid-tight seal between thepipe and the wall of the sump because adhesives need to cure and thequality of the cure depends on a variety of environment factors, such asambient temperature and humidity.

SUMMARY

The present disclosure is directed to various embodiments of apenetration fitting assembly configured to form a seal around a pipe orconduit and a wall of a sump through which the pipe or conduit passes.In one embodiment, the penetration fitting assembly includes a pipegasket including an annular portion defining a central openingconfigured to accommodate the pipe or conduit and first and second stemportions extending in opposite directions from the annular portion, aninner ring assembly configured to surround the pipe gasket including afirst inner ring half and a second inner ring half, a ring gasketassembly configured to surround the inner ring assembly including afirst ring gasket half and a second ring gasket half, a wall gasket, anouter ring assembly configured to surround the ring gasket assemblyincluding a first outer ring half and a second outer ring half, and aclamp configured to surround the outer ring assembly. When thepenetration fitting assembly is installed, the outer ring assemblycompresses the wall gasket against the wall of the sump, the clampcompresses the ring gasket assembly between the inner ring assembly andthe outer ring assembly, and the clamp compresses the pipe gasketagainst the pipe or conduit.

Each of the first inner ring half and the second inner ring half mayinclude a semi-cylindrical sidewall, a first semi-circular cap plateproximate to a rear end of the semi-cylindrical sidewall, a secondsemi-circular cap plate proximate to a front end of the semi-cylindricalsidewall, and a channel defined between the first semi-circular capplate and second semi-circular cap plate configured to accommodate aportion of the pipe gasket.

The channel of each of the first inner ring half and the second innerring half may be tapered, the pipe gasket may include a first rib and asecond rib opposite the first rib, and the channel of the first innerring half may be configured to accommodate the first rib and the channelof the second inner ring half may be configured to accommodate thesecond rib.

Each of the first ring gasket half and the second ring gasket half mayinclude a semi-annular portion, a first flange extending radiallyoutward from a first end of the semi-annular portion, and a secondflange extending radially outward from a second end of the semi-annularportion.

Each of the first ring gasket half and the second ring gasket half mayfurther include a semi-annular projection at an inner surface of thesemi-annular portion, and a semi-annular recess at an outer surface ofthe semi-annular portion.

Each of the first inner ring half and the second inner ring half mayinclude a semi-annular groove in an outer surface of thesemi-cylindrical sidewall, each of the first outer ring half and thesecond outer ring half may include a semi-annular projection extendingradially inward from the inner surface, and the semi-annular groove ofthe first and second inner ring halves may be configured to accommodatethe semi-annular projection of the first and second outer ring halves.

Each of the first outer ring half and the second outer ring half mayinclude a semi-annular projection extending radially inward, and thesemi-annular recess of the first and second ring gasket halves may beconfigured to accommodate the semi-annular projection of the first andsecond outer ring halves.

Each of the first and second ring gasket halves may include projectionson outer surfaces of the first and second flanges, and opposite ends ofeach of the first and second outer ring halves may include notchesconfigured to accommodate the projections.

The wall gasket may include a split ring having a front surfaceconfigured to face toward the wall of the sump and a rear surfaceconfigured to face away from the wall of the sump, a series of openingscircumferentially arranged in the split ring, an outer annular lip onthe rear surface, and an inner annular lip on the rear surface. Theseries of openings may be between the outer annular lip and the innerannular lip.

Each of the first and second outer ring halves may include a frontsurface configured to face toward the wall of the sump and a rearsurface configured to face away from the wall of the sump, and the frontsurface of each of the first and second outer ring halves may include asemi-annular groove configured to accommodate a portion of the outerannular lip of the wall gasket.

Each of the first and second inner ring halves may include a frontsurface configured to face toward the wall of the sump, and the frontsurface of each of the first and second inner ring halves may include asemi-annular groove configured to accommodate a portion of the innerannular lip of the wall gasket.

The wall gasket may also include a series of screw seals at the seriesof openings, each screw seal may include a tapered head at the rearsurface of the split ring.

Each of the first and second outer ring halves may include a series ofcounterbores extending from the front surface to the rear surfaceconfigured to accommodate fasteners securing the outer ring assembly tothe wall of the sump.

Each counterbore of the series of counterbores may include a firstrelatively wider portion at the rear surface, a second relatively widerportion at the front surface, a relatively narrower portion between thefirst relatively wider portion and the second relatively wider portion,and a taper connecting the second relatively wider portion to therelatively narrower portion. The second relatively wider portion and thetaper of each of the series of counterbores may be configured toaccommodate the tapered head of each of the series of screw seals.

The penetration fitting assembly may also include an adapter wall gasketincluding a curved front surface configured to face toward the wall ofthe sump.

A penetration fitting assembly according to another embodiment of thepresent disclosure includes a pipe gasket including an annular portiondefining a central opening configured to accommodate the pipe or conduitand first and second stem portions extending in opposite directions fromthe annular portion, a ring assembly configured to surround the pipegasket including a first ring half and a second ring half, a wallgasket, and a clamp configured to surround the ring assembly. When thepenetration fitting assembly is installed, the ring assembly compressesthe wall gasket against the wall of the sump, and the clamp compressesthe pipe gasket against the pipe or conduit.

A penetration fitting assembly according to another embodiment of thepresent disclosure includes a pipe gasket including an annular portiondefining a central opening configured to accommodate the pipe orconduit, a ring gasket assembly configured to surround the pipe gasketincluding a first ring gasket half and a second ring gasket half, a wallgasket, an outer ring assembly configured to surround the ring gasketassembly including a first outer ring half and a second outer ring half,and a clamp configured to surround the outer ring assembly. When thepenetration fitting assembly is installed, the outer ring assemblycompresses the wall gasket against the wall of the sump, the clampcompresses the ring gasket assembly between the pipe gasket and theouter ring assembly, and the clamp compresses the pipe gasket againstthe pipe or conduit.

This summary is provided to introduce a selection of concepts that arefurther described below in the detailed description. This summary is notintended to identify key or essential features of the claimed subjectmatter, nor is it intended to be used in limiting the scope of theclaimed subject matter. One or more of the described features may becombined with one or more other described features to provide a workabledevice.

BRIEF DESCRIPTION OF THE DRAWINGS

The features and advantages of embodiments of the present disclosurewill be better understood by reference to the following detaileddescription when considered in conjunction with the accompanyingfigures. In the figures, like reference numerals are used throughout thefigures to reference like features and components. The figures are notnecessarily drawn to scale.

FIGS. 1A-1B are an exploded perspective view and an assembledperspective view, respectively, of a penetration fitting assemblyaccording to one embodiment of the present disclosure;

FIGS. 2A-2D are a perspective view, an end view, a front view, and aside view, respectively, of a gasket according to one embodiment of thepresent disclosure;

FIGS. 3A-3E are first and second perspective views, a back view, a frontview, and a side view, respectively, of a base half according to oneembodiment of the present disclosure;

FIGS. 4A-4C are a perspective view, an end view, and a side view,respectively, of a cap half according to one embodiment of the presentdisclosure;

FIGS. 5A-5C are a perspective view, an end view, and a side view,respectively, of cap gaskets according to one embodiment of the presentdisclosure;

FIGS. 6A-6B are a perspective view and a top view, respectively, of apipe gasket according to one embodiment of the present disclosure;

FIGS. 7A-7C are a perspective view, a side view, and an end view,respectively, of a disposable spacer according to one embodiment of thepresent disclosure;

FIGS. 8A-8B are perspective views illustrating the embodiment of thepenetration fitting assembly being installed around a pipe or conduitpassing through a wall of a containment sump;

FIG. 9 is an exploded perspective view of a penetration fitting assemblyaccording to another embodiment of the present disclosure;

FIG. 10 is an assembled perspective view of a penetration fittingassembly according to a further embodiment of the present disclosure;

FIG. 11 is an exploded perspective view of a penetration fittingassembly including a two-piece split pipe gasket according to anotherembodiment of the present disclosure;

FIGS. 12A-12C are an exploded perspective view, an assembled perspectiveview, and an assembled top view, respectively, of a penetration fittingassembly including a pipe gasket, an inner ring assembly, a ring gasketassembly, an outer ring assembly, and a wall gasket according to oneembodiment of the present disclosure;

FIG. 13 is a perspective view of the embodiment of the pipe gasketillustrated in FIGS. 12A-12C;

FIGS. 14A-14C are a perspective view, an end view, and a side view,respectively, of an inner ring half of the embodiment of the inner ringassembly illustrated in FIGS. 12A-12C;

FIGS. 15A-15C are a perspective view, an end view, and a side view,respectively, of a ring gasket half of the embodiment of the ring gasketassembly illustrated in FIGS. 12A-12C;

FIGS. 16A-16D are a perspective view, an end view, a side view, and adetail view, respectively, of an outer ring half of the embodiment ofthe outer ring assembly illustrated in FIGS. 12A-12C;

FIGS. 17A-17D are a perspective view, a side view, a detail view, and atop view, respectively, of the embodiment of the wall gasket illustratedin FIGS. 12A-12C;

FIGS. 18A-18D are a front perspective view, a rear perspective view, atop view, and a side view, respectively, of an adapter gasket configuredto enable use of the embodiment of the penetration fitting assemblyillustrated in FIGS. 12A-12C on a curved sump wall;

FIGS. 19A-19B are a perspective view and a cross-sectional view,respectively, illustrating the embodiment of the penetration fittingassembly illustrated in FIGS. 12A-12C installed around a pipe or conduitpassing through a wall of a containment sump;

FIGS. 20A-20B are an exploded perspective view and an assembledperspective view, respectively, of a penetration fitting assemblyincluding a pipe gasket, a ring assembly, a ring gasket assembly, a wallgasket, an adapter gasket, and a clamp according to one embodiment ofthe present disclosure;

FIGS. 21A-21D are a perspective view, an end view, a side view, and atop view, respectively, the embodiment of the pipe gasket illustrated inFIGS. 20A-20B;

FIGS. 22A-22D are a perspective view, an end view, a detail view, and aside view, respectively, of a ring half of the embodiment of the ringassembly illustrated in FIGS. 20A-20B;

FIGS. 23A-23D are a perspective view, a side view, a detail view, and atop view, respectively, of the embodiment of the wall gasket illustratedin FIGS. 20A-20B;

FIGS. 24A-24D are a front perspective view, a rear perspective view, atop view, and a side view, respectively, of the embodiment of theadapter gasket illustrated in FIGS. 20A-20B;

FIGS. 25A-25B are an exploded perspective view and an assemblyperspective view, respectively, illustrating the embodiment of thepenetration fitting assembly illustrated in FIGS. 20A-20B installedaround a pipe or conduit passing through a wall of a containment sump;

FIGS. 26A-26B are an exploded perspective view and an assembledperspective view, respectively, of a penetration fitting assemblyincluding a pipe gasket, a ring gasket assembly, a ring assembly, a wallgasket, and a clamp according to one embodiment of the presentdisclosure;

FIGS. 27A-27C are a perspective view, a side view, and a top view,respectively, of the embodiment of the pipe gasket illustrated in FIGS.26A-26B;

FIGS. 28A-28C are a perspective view, an end view, and a side view,respectively, of a ring gasket half of the embodiment of the ring gasketassembly illustrated in FIGS. 26A-26B;

FIGS. 29A-29D are a perspective view, an end view, a detail view, and aside view, respectively, of a ring half of the embodiment of the ringassembly illustrated in FIGS. 26A-26B;

FIGS. 30A-30D are a perspective view, a side view, a detail view, and atop view, respectively, of the embodiment of the wall gasket illustratedin FIGS. 26A-26B;

FIGS. 31A-31D are a front perspective view, a rear perspective view, atop view, and a side view, respectively, of the embodiment of theadapter gasket illustrated in FIGS. 26A-26B; and

FIGS. 32A-32B are an exploded perspective view and an assemblyperspective view, respectively, illustrating the embodiment of thepenetration fitting assembly illustrated in FIGS. 26A-26B installedaround a pipe or conduit passing through a wall of a containment sump.

DETAILED DESCRIPTION

The present disclosure is directed to various embodiments of apenetration fitting assembly configured to form a seal between a wall ofa containment sump and a pipe or conduit passing through an opening inthe wall. In one or more embodiments, the penetration fitting assemblymay be utilized to replace a failed rubber boot. Additionally, in one ormore embodiments, the penetration fitting assemblies of the presentdisclosure are configured to form liquid-tight or substantiallyliquid-tight seals against the wall of the containment sump and aroundthe pipe or conduit with compression seals. Further, in one or moreembodiments, the penetration fitting assemblies of the presentdisclosure are configured to form liquid-tight or substantiallyliquid-tight seals against the wall of the containment sump and aroundthe pipe or conduit without the use of adhesives.

With reference now to FIGS. 1A-1B, a penetration fitting assembly 100according to one embodiment of the present disclosure includes a baseassembly 200, a gasket assembly 300 configured to form a liquid-tightseal between the base assembly 200 and a wall of containment sump, apipe gasket 400 configured to surround a pipe or conduit passing througha wall of a containment sump, and a cap assembly 500 configured tosurround the base assembly 200, compress the pipe gasket 400 against thepipe or conduit, and compress a portion of the gasket assembly 300between the base assembly 200 and the cap assembly 500 to form aliquid-tight seal between the cap assembly 500 and the base assembly200. The first and second base halves 201, 202 and the first and secondcap halves 501, 502 may be made out of any suitable material, such as,for instance, plastic. As described in more detail below, the capassembly 500 is configured to shield or insulate at least a portion ofthe gasket assembly 300 and at least a portion of the pipe gasket 400from the hydrocarbons that may collect in the containment sump, whichmight otherwise degrade or prematurely wear the gasket assembly 300 andthe pipe gasket 400. In this manner, the cap assembly 500 is configuredto prolong the service life of the penetration fitting assembly 100compared to related art penetration fittings in which the rubber gasketsare more completely exposed to hydrocarbons. Additionally, in one ormore embodiments, the penetration fitting assembly 100 is configured toform liquid-tight seals against the wall of the containment sump and theconduit or pipe passing through the wall of the containment sump withoutthe use of adhesives, which may improve the quality of the seals and/ormay reduce installation time because sealant requires time to cure andthe quality of the cure depends on a variety of environment factors,such as ambient temperature and humidity.

In the illustrated embodiment, the base assembly 200 includes a firstbase half 201 and a second base half 202, and the gasket assembly 300includes a first gasket half 301 configured to engage the first basehalf 201 and a second gasket half 302 configured to engage the secondbase half 202. Additionally, in the illustrated embodiment, the capassembly 500 includes a first cap half 501 and a second cap half 502.The first and second base halves 201, 202 are configured to surround thepipe or conduit passing through the wall of the containment sump, andthe first and second cap halves 501, 502 are configured to surround thebase assembly and the pipe or conduit passing through the wall of thecontainment sump. As described in more detail below, the first andsecond base halves 201, 202 are configured to compress the first andsecond gasket halves 301, 302, respectively, against the wall of thecontainment sump to form a liquid-tight seal or a substantiallyliquid-tight seal against the wall of the containment sump around theopening in the wall of the containment sump through which the pipe orconduit passes. Additionally, as described in more detail below, thefirst and second cap halves 501, 502 are configured to compress thefirst and second gasket halves 301, 302, respectively, against the firstand second base halves 201, 202 to form a liquid-tight seal or asubstantially liquid-tight seal between the first and second cap halves501, 502 and the first and second base halves 201, 202.

FIGS. 2A-2D depict the configuration of the first and second gaskethalves 301, 302 according to one embodiment of the present disclosure.In the illustrated embodiment, the configuration of first gasket half301 is identical to the configuration of the second gasket half 302,which is configured to reduce manufacturing costs and simplifyinstallation because the technician does not need to distinguish betweenthe two gasket halves 301, 302. However, In one or more embodiments, thefirst gasket half 301 may have a different configuration than the secondgasket half 302.

In the illustrated embodiment, each of the first and second gaskethalves 301, 302 includes a first semi-annular portion 303, a secondsemi-annular portion 304 spaced radially outward apart from the firstsemi-annular portion 303, and a third semi-annular portion 305. In theillustrated embodiment, the first and second semi-annular portions 303,304 are in the same or substantially the same plane, and the thirdsemi-annular portion 305 is on a different plane than the first andsecond semi-annular portions 303, 304. In the illustrated embodiment,the third semi-annular portion 305 is spaced radially outward from thesecond semi-annular portion 304 and is spaced longitudinally rearwardfrom the first and second semi-annular portions 303, 304.

In the illustrated embodiment, the first gasket half 301 and the secondgasket half 302 each also include a first tab 306 at a first end of thefirst, second, and third semi-annular portions 303, 304, 305, and asecond tab 307 at a second end of the first, second, and thirdsemi-annular portions 303, 304, 305. The first and second tabs 306, 307each include an opening 308, 309 (e.g., a hole), respectively,configured to receive a fastener securing the first and second gaskethalves 301, 302 to the first and second base halves 201, 202 andsecuring the first and second base halves 201, 202 together.

In the illustrated embodiment, the third semi-annular portion 305 has aD-shaped cross-sectional shape, and both of the first and secondsemi-annular portions 303, 304 have a round (e.g., circular)cross-sectional shape. In one or more embodiments, the first, second,and third semi-annular portions 303, 304, 305 may have the same orsubstantially the same cross-sectional shape (e.g., round or D-shaped).Additionally, although in the illustrated embodiment the first andsecond gasket halves 301, 302 each include three semi-annular portions303, 304, 305, in one or more embodiments, each of the first and secondgasket halves 301, 302 may include any other suitable number ofsemi-annular gasket portions, such as, for instance, more than threesemi-annular gasket portions or only two semi-annular gasket portions(e.g., the first and second gasket halves 301, 302 may not include thefirst semi-annular portion 303 or the second semi-annular portion 304).

With reference now to the embodiment illustrated in FIGS. 3A-3E, thefirst and second base halves 201, 202 each include a semi-annular faceplate 203 having a rear surface 204 and a front surface 205 opposite therear surface 204, a reinforcement flange 206 extending circumferentiallyaround at least a portion of an outer periphery of the semi-annular faceplate 203, and first and second abutment flanges 207, 208 at oppositeend portions of the semi-annular face plate 203. In the illustratedembodiment, the reinforcement flange 206 and the first and secondabutment flanges 207, 208 extend rearward from the rear surface 204 ofthe semi-annular face plate 203 (e.g., the reinforcement flange 206 andthe first and second abutment flanges 207, 208 extend in a directionaway from the front surface 205 of the semi-annular face plate 203).

In the illustrated embodiment, each of the first and second base halves201, 202 also includes a series of openings 209 (e.g., holes) in theface plate 203 configured to accommodate fasteners for securing thefirst and second base halves 201, 202 to the wall of the containmentsump. The configuration (e.g., number, size, and arrangement) of theopenings 209 in the face plate 203 may be selected to correspond to theconfiguration (e.g., number, size, and arrangement) of the fasteners inthe wall of the containment sump (e.g., the pre-existing fasteners inthe wall of the containment sump that were utilized to install therubber boot or other pipe fitting that is being replaced by thepenetration fitting assembly 100). In one or more embodiments, thenumber of openings 209 in the face plate 203 of each of the first andsecond fitting halves 201, 202 may be in a range from two openings tosix openings. In one or more embodiments, the number of openings 209 inthe face plate 203 may vary depending on the size of the first andsecond base halves 201, 202 (e.g., relatively larger base halves 201,202 may include more openings 209 and relatively smaller base halves201, 202 may include fewer openings 209 in the face plates 203).

In the illustrated embodiment, the first and second abutment flanges207, 208 each include an opening 210, 211 (e.g., a hole), respectively,configured to accommodate a fastener securing the first and secondfitting halves 201, 202 together. In the illustrated embodiment, thefirst abutment flange 207 of each of the first and second fitting halves201, 202 also includes a slot or channel 212 having an open end 213 atthe rearward end of the first abutment flange 207. The slot 212 isconfigured to accommodate and retain a square nut. In the illustratedembodiment, the width of the slot 212 in the first abutment flange 207is selected to accommodate the square nut but prevent the square nutfrom rotating within the slot 212 (e.g., the width of the slot 212 is atleast as wide as the square nut but not wider than a diagonal of thesquare nut). Accordingly, once the first and second base halves 201, 202are coupled together with the fasteners, the slots 212 prevent the nutsfrom rotating relative to the fasteners (i.e., the slots 212 prevent thenuts from backing off of the fasteners), which might otherwise cause thefirst and second base halves 201, 202 to detach from each other or atleast reduce the compression of the tabs 306, 307 of the first andsecond gasket halves 301, 302, which could create a leak path. The slots212, which are configured to prevent rotation of the nuts, also enablesa technician to secure the first and second base halves 201, 202together with the fasteners without requiring tool access to the nuts.

Additionally, in the illustrated embodiment, a first notch 214 isdefined in the reinforcement flange 206 proximate to the first abutmentflange 207, and a second notch 215 is defined in the reinforcementflange 206 proximate to the second abutment flange 208. In one or moreembodiments, the first and second notches 214, 215 may extend completelythrough or only partially through the reinforcement flange 206 (e.g.,the notches 214, 215 may extend from a rearward end of the reinforcementflange 206 to the rear surface 204 of the face plate 203 or the notches214, 215 may extend from the rearward end of the reinforcement flange206 toward the rear surface 204 of the face plate 203 but stop short ofthe rear surface 204). Accordingly, in the illustrated embodiment, thereinforcement flange, or at least the full height of the reinforcementflange 206, does not extend completely to the first and second abutmentflanges 207, 208 (e.g., the reinforcement flange 206 may stop short ofthe first and second abutment flanges 207, 208). In one or moreembodiments, the reinforcement flange 206 may be provided without thefirst notch proximate 214 to the first abutment flange 207 (e.g., thereinforcement flange 206 may extend completely to the first abutmentflange 207, but not extend completely to the second abutment flange208). The second notch 215 in the reinforcement flange 206 proximate tothe second abutment flange 208 is configured to provide access for atool (e.g., a spanner) to engage the head of the fastener for securingthe first and second fitting halves 201, 202 together.

In the illustrated embodiment, each of the first and second base halves201, 202 also includes at least one gusset 216 extending from the rearsurface 204 of the semi-annular face plate 203 to the reinforcementflange 206.

In the illustrated embodiment, each of the first and second base halves201, 202 also includes a semi-annular groove 217 in an outer surface 218of the reinforcement flange 206, and first and second semi-annulargrooves 219, 220 in the front surface 205 of the face plate 203. In theillustrated embodiment, the first and second semi-annular grooves 219,220 in the front surface 205 of the face plate 203 are on opposite sidesof the openings 209 in the face plate 203 (e.g., the first semi-annulargroove 219 in the front surface 205 of the face plate 203 is proximateto an inner peripheral edge 221 of the face plate 203 and the secondsemi-annular groove 220 is proximate to an outer peripheral edge 222 ofthe face plate 203). In one or more embodiments, the first and secondbase halves 201, 202 may include any other suitable number ofsemi-annular grooves in the front surface 205 of the face plate 203,such as, for instance, a single semi-annular groove or three or moresemi-annular grooves.

Additionally, in the illustrated embodiment, the semi-annular groove 217in the outer surface 218 of the reinforcement flange 206 has a flat orsubstantially flat bottom surface 223, and the first and secondsemi-annular grooves 219, 220 in the front surface 205 of the face plate203 have rounded (e.g., curved) bottom surfaces 224, 225, respectively.Accordingly, in the illustrated embodiment, the semi-annular groove 217in the outer surface 218 of the reinforcement flange 206 is configuredto accommodate a D-shaped gasket, and the first and second semi-annulargrooves 219, 220 in the front surface 205 of the face plate 203 areconfigured to accommodate round gaskets. In one or more embodiments, thesemi-annular grooves 217, 219, 220 may have any other suitablecross-sectional shapes. For instance, in one or more embodiments, all ofthe semi-annular grooves 217, 219, 220 may have the same orsubstantially the same configuration.

When the first and second gasket halves 301, 302 are coupled to thefirst and second base halves 201, 202, respectively, the first andsecond tabs 306, 307 are aligned or substantially aligned with the firstand second abutment flanges 207, 208, respectively, the first and secondsemi-annular portions 303, 304 of the first and second gasket halves301, 302 are accommodated in the first and second semi-annular grooves219, 220, respectively, in the front surface 205 of the face plate 203of the first and second base halves 201, 202, and the third semi-annularportion 305 is accommodated in the semi-annular groove 217 in the outersurface 218 of the reinforcement flange 206 of the first and second basehalves 201, 202, respectively.

With reference now to the embodiment illustrated in FIGS. 4A-4C, each ofthe first and second cap halves 501, 502 includes a semi-cylindricalsidewall 503 having an front end 504 and a rear end 505, an outer capplate 506 at the rear end 505 of the semi-cylindrical sidewall 503, andan inner cap plate 507 spaced forward of the outer cap plate 506. In theillustrated embodiment, the inner cap plate 507 and the outer cap plate506 both have a semicircular shape or substantially a semicircularshape. Additionally, in the illustrated embodiment, the outer and innercap plates 506, 507 are not provided with an opening (e.g., a hole)configured to accommodate the pipe or conduit passing through the wallof the containment sump. However, as described in more detail below,during installation of the penetration fitting assembly 100, atechnician drills holes through the outer and inner cap plates 506, 507to accommodate the pipe or conduit passing through the wall of thecontainment sump. In this manner, the penetration fitting assembly 100is configured to accommodate a variety of different pipe offsets andangled (e.g., canted) pipes relative to the wall of the containmentsump.

In the illustrated embodiment, a channel 508 is defined between theouter and inner cap plates 506, 507. In one or more embodiments, thechannel 508 may taper in a direction toward the semi-cylindricalsidewall 503 (e.g., the channel 508 is wedge-shaped). Additionally, inthe illustrated embodiment, the semi-cylindrical sidewall 503 of each ofthe first and second cap halves 501, 502 includes a pair of notches 509,510 aligned with the channel 508 (e.g., a first mating surface 511 ofthe semi-cylindrical sidewall 503 includes a first notch 509 alignedwith a first end of the channel 508, and a second mating surface 512 ofthe semi-cylindrical sidewall 503 includes a second notch 510 alignedwith a second end of the channel 508 opposite the first end of thechannel 508). That is, the notches 509, 510 in the semi-cylindricalsidewall 503 are located at opposite ends of the channel 508 in each ofthe cap halves 501, 502. Additionally, in the illustrated embodiment,the notches 509, 510 taper to the same or substantially the same extentas the channel 508. As described in more detail below, the channel 508and the pair of notches 509, 510 in each of the first and second caphalves 501, 502 are configured to accommodate portions of the pipegasket 400. Although in the illustrated embodiment the notches 509, 510have a rectangular cross-sectional shape, in one or more embodiments thenotches 509, 510 may have any other suitable shape depending on theconfiguration of the pipe gasket 400.

In the illustrated embodiment, each of the first and second cap halves501, 502 includes a semi-annular groove 513 in an inner surface 514 ofthe semi-cylindrical sidewall 503. In the illustrate embodiment, thesemi-annular groove 513 is proximate to the front end 504 of thesemi-cylindrical sidewall 513. The semi-annular groove 513 in each ofthe first and second cap halves 501, 502 are configured to accommodateor receive a portion of the third semi-annular portions 305 of the firstand second gasket halves 301, 302, respectively, when the cap halves501, 502 are installed around the base halves 201, 202. In the manner,the third semi-annular portions 305 of the first and second gaskethalves 301, 302 are configured to create a liquid-tight or substantiallya liquid-tight seal between the semi-cylindrical sidewalls 513 of thecap halves 501, 502 and the reinforcement flanges 206 of the base halves201, 202.

In the illustrated embodiments, each of the first and second cap halves501, 502 includes at least one semi-annular ridge 515 (e.g., a pair ofsemi-annular ridges) on an outer surface 516 of the semi-cylindricalsidewall 513. Additionally, in the illustrated embodiment, the capassembly 500 includes a pair of clamps 517, 518 (see FIG. 1A) configuredto secured the cap halves 501, 502 together. In one or more embodiments,the clamps 517, 518 may be high torque band clamps or any other suitabletype or kind of clamps. Additionally, in one or more embodiments, theclamps 517, 518 may be connected to the outer surfaces 516 of thesemi-cylindrical sidewalls 513 of the cap halves 501, 502 on oppositesides of the semi-annular ridges 515. The semi-annular ridges 515 areconfigured to maintain the position of the clamps 517, 518 on the outersurfaces 516 of the semi-cylindrical sidewalls 513 and thereby preventthe clamps 517, 518 from inadvertently disengaging the cap halves 501,502.

With reference now to the embodiment illustrated in FIGS. 5A-5C, the capassembly 500 also includes a pair of cap gaskets 519, 520 coupled toeach of the cap halves 501, 502. The pair of cap gaskets 519, 520 areconfigured to be connected to the first and second mating surfaces 511,512, respectively, of each of the first and second cap halves 501, 502.As described in more detail below, when the first and second cap halves501, 502 are brought together to compress the pipe gasket 400, the pairof cap gaskets 519, 520 connected to the first cap half 501 engage thepair of cap gaskets 519, 520, respectively, connected to the second caphalf 502 to create a liquid-tight seal or substantially a liquid-tightseal along joints between the semi-cylindrical sidewalls 503 of the caphalves 501, 502.

In the illustrated embodiment, each of the cap gaskets 519, 520 isdogleg-shaped, including a wider and thinner upper portion 521, 522,respectively, and a narrower and thicker lower portion 523, 524,respectively, although in one or more embodiments the cap gaskets 519,520 may have any other suitable shape. Additionally, in the illustratedembodiment, each of the cap gaskets 519, 520 includes a step 525, 526,respectively, between the respective wider and thinner upper portion521, 522 above the step 525, 526 and the respective narrower and thickerlower portion 523, 524 below the step 525, 526.

In the embodiment illustrated in FIGS. 4A-4C, the mating surfaces 511,512 of the cap halves 501, 502 includes depressions or recesses 527,528, respectively, configured to accommodate the cap gaskets 519, 520,respectively. In the illustrated embodiment, the recesses 527, 528 inthe mating surfaces 511, 512 of the cap halves 501, 502 have the same orgenerally the same profile shape as the cap gaskets 519, 520.

Additionally, in the illustrated embodiment, each of the cap gaskets519, 520 includes a peg 529, 530 (e.g., a dowel), respectively,configured to be inserted into a corresponding pocket 531, 532 in themating surfaces 511, 512 of the cap halves 501, 502 (see FIGS. 4A-4C).Although in the illustrated embodiment the pegs 529, 530 of the capgaskets 519, 520 are cylindrical and the pockets 531, 532 in the matingsurfaces 511, 512 of the cap halves 501, 502 are cylindrical, in one ormore embodiments, the pegs 529, 530 and the pockets 531, 532 may haveany other suitable shape or shapes. In one or more embodiments, the capgaskets 519, 520 may be secured to the mating surfaces 511, 512 of thecap halves 501, 502 by adhesive.

In the illustrated embodiment, when the cap gaskets 519, 520 arereceived in the recesses in the mating surfaces 511, 512 of the caphalves 501, 502, the wider and thinner upper portions 521, 522 of thecap gaskets 519, 520 overlap the inner cap plates of the cap halves 501,502. Additionally, in the illustrated embodiment, the wider and thinnerupper portions 521, 522 of the cap gaskets 519, 520 are flush orsubstantially flush with the lower cap plates 507 of the cap halves 501,502 and the narrower and thicker lower portions 523, 524 of the capgaskets 519, 520 project outward beyond the mating surfaces 511, 512 ofthe cap halves 501, 502.

With reference now to the embodiment illustrated in FIGS. 6A-6B, thepipe gasket 400 includes an annular portion 401 defining a centralopening 402 configured to accommodate the pipe or conduit passingthrough the wall of the containment sump, and a pair of stem portions403, 404 extending in opposite directions from opposing portions (e.g.,diametrically opposed portions) of the annular portion 401.

Additionally, in the illustrated embodiment, the pipe gasket 400includes a first rib 405 extending along the length of one side of thefirst stem portion 403, around one half of the annular portion 401, andalong the length of one side of the second stem portion 404. In theillustrated embodiment, the pipe gasket 400 also includes a second rib406 extending along the length of the other side of the first stemportion 403, around the other half of the annular portion 401, and alongthe length of the other side of the second stem portion 404. In theillustrated embodiment, the first and second ribs 405, 406 are onopposite sides of the pipe gasket 400. Additionally, in the illustratedembodiment, each of the first and second stem portions 403, 404 includea central portion 407 between the first and second ribs 405, 406. In theillustrated embodiment, the stem portions 403, 404 each have a cruciformcross-sectional shape defined by the central portion 407 and the firstand second ribs 405, 406.

In the illustrated embodiment, each of the first and second ribs 405,406 tapers from a relatively wider, inner end 408 proximate to thecentral portion 407 and a relatively narrower, outer end 409 distal tothe central portion 407. In one or more embodiments, the taper of thefirst and second ribs 405, 406 may match or substantially match thetaper of the channels 508 in the cap halves 501, 502 (e.g., the firstand second ribs 405, 406 of the pipe gasket 400 are keyed to thechannels 508 in the first and second cap halves 501, 502). In one ormore embodiments, the first and second ribs 405, 406 of the pipe gasket400 taper at an angle in a range from approximately 2 degrees toapproximately 6 degrees. In one or more embodiments, the first andsecond ribs 405, 406 of the pipe gasket 400 taper at an angle ofapproximately 4 degrees. As described in more detail below, the taper ofthe channels 508 in the cap halves 501, 502 and the corresponding taperof the ribs 405, 406 is configured to secure the first and second ribs405, 406 of the pipe gasket 400 to the first and second cap halves 501,502 with a friction fit.

Additionally, in the illustrated embodiment, the first and second ribs405, 406 have a generally rectangular cross-sectional shape, although inone or more embodiments, the first and second ribs 405, 406 may have anyother suitable cross-sectional shape depending on the configuration ofthe channels 508 in the first and second cap halves 501, 502, such as,for instance, a square cross-sectional shape or a rounded (e.g.,semi-circular) cross-sectional shape.

In the illustrated embodiment, the pipe gasket 400 also includes a split410 extending along the entire length of one of the stem portions 403and through the annular portion 401. The split 410 enables a technicianto wrap the annular portion 401 of the pipe fitting 400 around the pipeor conduit by spreading the stem portion 403 about the split 410, andthen sliding the pipe gasket 400 onto the pipe or conduit such that thepipe or conduit passes through the split 410 and is received in thecentral opening 402 of the pipe gasket 400. In one or more embodiments,the split 410 may extend along the entire length of the pipe gasket 400such that, for example, the pipe gasket 400 is two separate components(e.g., the split 410 may extend along long the entire length of one ofthe stem portions 403, through the annular portion 401, and along theentire length of the other stem portion 404 such that the pipe gasket400 is a split two-piece gasket).

In the illustrated embodiment, the length of the pipe gasket 400 (e.g.,the distance between ends of the stem portions 403, 404) is longer thana width (e.g., a diameter) of the first and second cap halves 501, 502together. As described in more detail below, the longer length of thepipe gasket 400 enables a technician to slide the pipe gasket 400 alongthe channels 508 in the cap halves 501, 502 to locate the annularportion 401 based on the position of the pipe or conduit. For instance,if the pipe or conduit passes through the wall of the containment sumpat an oblique angle (e.g., the pipe or conduit is not orthogonal to thewall of the containment sump), the longer length of the pipe gasket 400enables a technician to locate the annular portion 401 and the centralopening 402 of the pipe gasket 400 in a position that is not concentricwith the cap halves 501, 502 (e.g., the longer length of the pipe gasketenables a technician to locate the annular portion 401 and the centralopening 402 of the pipe gasket 400 radially off-center with respect tothe outer and inner cap plates 506, 507 of the first and second caphalves 501, 502).

FIGS. 1A and 7A-7C depict a disposable spacer 600 configured tofacilitate installation of the cap assembly 500. As described in moredetail below, the disposable spacer 600 is configured to maintain thesame spacing between the cap halves 501, 502 as the does the pipe gasket400 while a technician drills an opening (e.g., a hole) in the outer andinner cap plates 506, 507 of the first and second cap halves 501, 502 toaccommodate the pipe or conduit passing through the wall of thecontainment sump. The disposable spacer 600 does not remain with the capassembly 500 once it is installed. Instead, once the opening is drilledin the outer and inner cap plates 506, 507 of the first and second caphalves 501, 502, the disposable spacer 600 may discarded and then thepipe gasket 400 may be installed between the cap halves 501, 502.

In the illustrated embodiment, the disposable spacer 600 is an axialmember including a central portion 601, a first rib 602 extending alongthe length of one side of the central portion 601, and a second rib 603extending along the length of the other side of the central portion 601.In the illustrated embodiment, the first and second ribs 602, 603 are onopposite sides of the central portion 601. In one or more embodiments,the disposable spacer 600 may have the same configuration orsubstantially the same configuration as the stem portions 403, 404 ofthe pipe gasket 400. In the illustrated embodiment, the disposablespacer 600 has a cruciform cross-sectional shape.

In the illustrated embodiment, each of the first and second ribs 602,603 tapers from a relatively wider, inner end 604 proximate to thecentral portion 601 and a relatively narrower, outer end distal 605 tothe central portion 601. In one or more embodiments, the taper of thefirst and second ribs 602, 603 may match or substantially match thetaper of the channels 508 in the cap halves 501, 502 (e.g., the firstand second ribs 602, 603 of the of the disposable spacer 600 are keyedto the channels 508 in the first and second cap halves 501, 502). In oneor more embodiments, the first and second ribs 602, 603 of thedisposable spacer 600 taper at an angle in a range from approximately 2degrees to approximately 6 degrees. In one or more embodiments, thefirst and second ribs 602, 603 of the disposable spacer 600 taper at anangle of approximately 4 degrees. As described in more detail below, thetaper of the channels 508 in the cap halves 501, 502 and thecorresponding taper of the ribs 602, 603 of the disposable spacer 600 isconfigured to secure the first and second ribs 602, 603 of thedisposable spacer 600 to the first and second cap halves 501, 502 with afriction fit.

Additionally, in the illustrated embodiment, the first and second ribs602, 603 have a generally rectangular cross-sectional shape, although inone or more embodiments, the first and second ribs 602, 603 may have anyother suitable cross-sectional shape depending on the configuration ofthe channels 508 in the first and second cap halves 501, 502, such as,for instance, a square cross-sectional shape or a rounded (e.g.,semi-circular) cross-sectional shape.

Additionally, in the illustrated embodiment, an upper surface 606 of thecentral portion 601 of the disposable spacer 600 includes one or moreindicia 607 (e.g., one or more visual indicia), such as, for instance,one or more markings. In the illustrated embodiment, the one or moreindicia 607 includes a notch in the upper surface 606 of the centralportion 601. The one or more indicia 607 indicate the range ofpermissible locations (i.e., the envelope) in which an opening (e.g., ahole) can be drilled through the outer and inner cap plates 506, 507 ofthe first and second cap halves 501, 502 to accommodate the pipe orconduit passing through the wall of the containment sump.

FIGS. 8A-8B depict tasks of installing the penetration fitting assembly100 around a pipe or conduit passing through an opening in a wall ofcontainment sump according to one embodiment of the present disclosure.To install the penetration fitting assembly 100, the existing bootsealing the pipe or conduit to the wall in the containment sump is firstremoved, which exposes the fasteners (e.g., studs) securing the existingboot to the wall of the sump.

The first and second gasket halves 301, 302 may then be attached to thefirst and second base halves 201, 202, respectively, such that the firstand second semi-annular portions 303, 304 of the gasket halves 301, 302are accommodated in the first and second semi-annular grooves 219, 220,respectively, in the front surface 205 of the face plate 203 of thefirst and second base halves 201, 202, the third semi-annular portions305 of the first and second gasket halves 301, 302 are accommodated inthe semi-annular groove 217 in the outer surface 218 of thereinforcement flange 206 of the first and second base halves 201, 202,and the first and second tabs 306, 307 of the gasket halves 301, 302abut outer surfaces of the first and second abutment flanges 207, 208,respectively.

The first and second base halves 201, 202, together with the first andsecond gaskets halves 301, 302 coupled thereto, may then be broughttogether around the pipe or conduit and then coupled together. The firstand second base halves 201, 202 may be coupled together by insertingnuts (e.g., square nuts) into the slots 212 in the first abutmentflanges 207, inserting fasteners through the openings 308, 309 in thetabs 306, 307 of the gaskets halves 301, 302 and the openings 210, 211in the abutment flanges 207, 208, and then tightening the fasteners. Asdescribed above, the notch 215 in the reinforcement flange 206 proximateto the second abutment flange 208 of each of the base halves 201, 202provide clearance for a tool, such as a spanner or a hex key, to engagethe heads of the fasteners.

Once the first and second base halves 201, 202 have been coupledtogether around the pipe or conduit, the base assembly 200 may then beslid along the pipe or conduit toward the wall of the containment sumpuntil the fasteners (e.g., studs) extending through the wall of thecontainment sump extend through the openings 209 in the semi-annularface plates 203 of the base halves 201, 202 and the first and secondsemi-annular portions 303, 304 of the first and second gasket halves301, 302 abut (e.g., contact) the inner surface of the wall of the sump.In one or more embodiments, the first and second base halves 201, 202,together with the first and second gaskets halves 301, 302 coupledthereto, may be coupled to the wall of the containment sump withseparate fasteners (e.g., not the pre-existing studs utilized to securethe boot to the wall of the sump). When the first and second base halves201, 202 of the base assembly 200 are coupled to the wall of thecontainment sump, the first and second base halves 201, 202 compress thefirst and second semi-annular portions 303, 304 of the first and secondgasket halves 301, 302 against the wall of the containment sump to forma liquid-tight seal or a substantially liquid-tight seal between theface plates 203 of the base halves 201, 202 and the wall of thecontainment sump around the pipe or conduit and the opening in the wallof the containment sump through which the pipe or conduit passes.

Openings 532, 533 may then be cut (e.g., with a hole saw) in the outerand inner cap plates 506, 507, respectively, of the cap halves 501, 502to accommodate the pipe or conduit. In one embodiment, the openings 532,533 may be cut in the cap halves 501, 502 by first inserting the ribs602, 603 of the disposable spacer 600 into the channels 508 of the caphalves 501, 502. Once the disposable spacer 600 has been inserted intothe channels 508 of the cap halves 501, 502, the openings 532, 533 maybe cut along the joint between the first and second cap halves 501, 502and through the disposable spacer 600 at any position within or alongthe one or more indicia 607 on the upper surface 606 of the disposablespacer 600.

The pipe gasket 400 may then be installed around the pipe or conduit. Inone or more embodiments, the pipe gasket 400 may be installed byspreading the stem portion 403 about the split 410, and then sliding thepipe gasket 400 onto the pipe or conduit such that the pipe or conduitpasses through the split 410 and is received in the central opening 402of the pipe gasket 400.

The cap halves 501, 502, with the openings 532, 533 cut in the outer andinner cap plates 506, 507, may then be brought together around the pipegasket 400 and the pipe or conduit passing therethrough. The cap halves501, 502 may then be coupled together with the pair of clamps 517, 518(e.g. high-torque clamps) extending around outer surfaces 516 of thesemi-cylindrical sidewalls 513 of the cap halves 501, 502. When the caphalves 501, 502 are coupled together by the clamps 517, 518, the ribs405, 406 of the pipe gasket 400 are connected to the tapered channels508 of the cap halves 501 with a friction fit, and the cap halves 501,502 compress annular portion 401 of the pipe gasket 400 against the pipeor conduit to create a liquid-tight or substantially liquid-tight sealagainst the pipe or conduit. Additionally, when the cap halves 501, 502are coupled together by the clamps 517, 518, the third semi-annularportions 305 of the gasket halves 301, 302 are accommodated in thesemi-annular grooves 513 in the inner surfaces 514 of thesemi-cylindrical sidewalls 503 of the cap halves 501, 502 and the thirdsemi-annular portions 305 of the gasket halves 301, 302 are compressedbetween the semi-cylindrical sidewalls 503 of the cap halves 501, 502and the reinforcement flanges 206 of the base halves 201, 202 to createa liquid-tight seal or a substantially liquid-tight seal between thesemi-cylindrical sidewalls 503 of the cap halves 501, 502 and thereinforcement flanges 206 of the base halves 201, 202. Accordingly, inthe illustrated embodiment, the penetration fitting assembly 100 formsliquid-tight or substantially liquid-tight seals against the wall of thecontainment sump and around the pipe or conduit without the use ofadhesives (i.e., with only compression seals), although in one or moreembodiments, one or more adhesives may be utilized to forms liquid-tightor substantially liquid-tight seals against the wall of the containmentsump and/or around the pipe or conduit passing through an opening in thewall of the containment sump. For example, in one or more embodiments,sealant may be applied to each of the gaskets (e.g., the pipe gasket 400and the first and second gasket halves 301, 302).

Additionally, when the cap halves 501, 502 are coupled together by theclamps 517, 518, the cap assembly 500 shields or covers at least aportion of the gasket assembly 300 and the pipe gasket 400 fromhydrocarbons that may collect in the sump, which might otherwise degradeor prematurely wear the gasket assembly 300 and the pipe gasket 400. Inthis manner, the cap assembly 500 is configured to prolong the servicelife of the penetration fitting assembly 100 compared to related artpenetration fittings in which the rubber gaskets are more completelyexposed to hydrocarbons.

In one or more embodiments, the penetration fitting assembly 100 may beprovided without the base assembly 200 and the gasket assembly 300. Forinstance, in one or more embodiments in which the penetration fittingassembly 100 is not secured to the wall of the containment sump withfasteners, the penetration fitting assembly 100 may be provided withoutthe base assembly 200 and the gasket assembly 300. Additionally, in oneor more embodiments, the penetration fitting assembly 100 may beprovided without the pipe gasket 400. For instance, in one or moreembodiments, one or both of the cap halves 501, 502 may include aninjection port configured to permit a sealant to be injected between thefirst and second cap halves 501, 502 and around the pipe or conduit, asshown, for example, in FIG. 10.

In one or more embodiments, the cap assembly 500 (i.e., first and secondcap halves 501, 502) and the pipe gasket 400 may have any other suitableconfigurations. For instance, in one or more embodiments, the capassembly 500 (i.e., first and second cap halves 501, 502) and the pipegasket 400 may have the configurations shown in FIG. 11.

With reference now to FIG. 9, a penetration fitting assembly 700according to another embodiment of the present disclosure includes capassembly 800, a pipe gasket 900, and a disposable spacer 1000. In theillustrated embodiment, the cap assembly 800 includes a first cap half801, a second cap half 802, a pair of cap gaskets 803, 804 coupled toeach of the cap halves 801, 802, and at least one clamp (e.g., a pair ofhigh torque clamps 805, 806) configured to couple the first and secondcap halves cap halves 801, 802 together. In one or more embodiments, theconfigurations of the cap gaskets 803, 804 are the same as orsubstantially the same as the configurations of the cap gaskets 519,520, respectively, described above with reference to the embodimentillustrated in FIGS. 1A-8B.

In the illustrated embodiment, each of the cap halves 801, 802 includesa semi-cylindrical sidewall 807 having an front end 808 and a rear end809, an outer semicircular cap plate 810 at the rear end 809 of thesemi-cylindrical sidewall 807, an inner semicircular cap plate 811spaced forward of the outer semicircular cap plate 810, and a channel812 defined between the outer and inner semicircular cap plates 810,811. In the illustrated embodiment, the configuration of the cap halves801, 802 is the same as the configuration of the cap halves cap halves501, 502 described above with reference to the embodiment illustrated inFIGS. 1A-8B, with the exception that an inner surface 813 of asemi-cylindrical sidewall 807 of each of the cap halves 801, 802includes a series of semi-annular, partial threads 814. Together, thesemi-annular, partial threads 814 of the cap halves 801, 802 define aseries of threads. The threads of the first and second cap halves 801,802 enable the cap assembly 800 to be threadedly connected to anexisting threaded penetration fitting hub, for instance.

In the illustrated embodiment, the pipe gasket 900 includes an annularportion 901 defining a central opening 902 configured to accommodate thepipe or conduit passing through the wall of the containment sump, a pairof stem portions 903, 904 extending in opposite directions from opposingportions (e.g., diametrically opposed portions) of the annular portion901, first and second ribs 905, 906 extending along opposite sides ofthe stem portions 903, 904 and the annular portion 901, and a split 907extending along the entire length of one of the stem portions 903 andthrough the annular portion 901. In one or more embodiments, theconfiguration of the pipe gasket 900 is the same as or substantially thesame as the configuration of the pipe gasket 400 described above withreference to the embodiment illustrated in FIGS. 1A-8B.

In the illustrated embodiment, the disposable spacer 1000 is an axialmember including a central portion 1001, and first and second ribs 1002,1003 extending along opposite sides of the central portion 1001.Additionally, in one or more embodiments, an upper surface 1004 of thecentral portion 1001 of the disposable spacer 1000 includes one or moreindicia 1005 (e.g., one or more visual indicia), such as, for instance,one or more markings and/or a notch. In one or more embodiments, theconfiguration of the disposable spacer 1000 is the same as orsubstantially the same as the configuration of the disposable spacer 600described above with reference to the embodiment illustrated in FIGS.1A-8B.

To install the penetration fitting assembly 700, openings 815, 816 maythen be cut (e.g., with a hole saw) in the outer and inner semicircularcap plates 810, 811, respectively, of the cap halves 801, 802 toaccommodate the pipe or conduit. In one embodiment, the openings 815,816 may be cut in the cap halves 801, 802 by first inserting the ribs1002, 1003 of the disposable spacer 1000 into the channels 812 of thecap halves 801, 802. Once the ribs 1002, 1003 of the disposable spacer1000 have been inserted into the channels 812 of the cap halves 801,802, the openings 815, 816 may be cut along the joint between the firstand second cap halves 801, 802 and through the disposable spacer 1000 atany position within or along the one or more indicia 1005 on the uppersurface 1004 of the disposable spacer 1000.

The pipe gasket 900 may then be installed around the pipe or conduit. Inone or more embodiments, the pipe gasket 900 may be installed byspreading the stem portion 903 about the split 907, and then sliding thepipe gasket 900 onto the pipe or conduit such that the pipe or conduitpasses through the split 907 and is received in the central opening 902of the pipe gasket 900.

The cap halves 801, 802, with the openings 815, 816 cut in the outer andinner cap plates 810, 811, may then be brought together around the pipegasket 900 and the pipe or conduit passing therethrough. The cap halves801, 802 may then be coupled together with the pair of high torqueclamps 805, 806 extending around outer surfaces 817 of thesemi-cylindrical sidewalls 807 of the cap halves 801, 802. When the caphalves 801, 802 are coupled together by the clamps 805, 806, the ribs905, 906 of the pipe gasket 900 are connected to the channels 812 of thecap halves 801, 802 with a friction fit, and the cap halves 901, 902compress annular portion 901 of the pipe gasket 900 against the pipe orconduit to create a liquid-tight or substantially liquid-tight sealagainst the pipe or conduit. Accordingly, in the illustrated embodiment,the penetration fitting assembly 700 forms a liquid-tight orsubstantially liquid-tight seal around the pipe or conduit without theuse of adhesives (i.e., with only a compression seal), although in oneor more embodiments, one or more adhesives may be utilized to form aliquid-tight or substantially liquid-tight seal around the pipe orconduit passing through an opening in the wall of the containment sump.

Additionally, when the cap halves 801, 802 are coupled together by theclamps 805, 806, the cap assembly 800 shields or covers at least aportion of the pipe gasket 900 from hydrocarbons that may collect in thesump, which might otherwise degrade or prematurely wear the pipe gasket900. In this manner, the cap assembly 800 is configured to prolong theservice life of the penetration fitting assembly 700 compared to relatedart penetration fittings in which the rubber gaskets are more completelyexposed to hydrocarbons.

In one or more embodiments, the penetration fitting assembly 700 may beprovided without the pipe gasket 900. For instance, in one or moreembodiments, one or both of the cap halves 801, 802 may include aninjection port configured to permit a sealant to be injected between thefirst and second cap halves 801, 802 and around the pipe or conduit, asshown, for example, in FIG. 10.

With reference now to FIGS. 12A-12C, a penetration fitting assembly 1100according to another embodiment of the present disclosure includes apipe gasket 1200 configured to surround a pipe or conduit passingthrough an opening in a wall of a containment sump, an inner ringassembly 1300 configured to compress the pipe gasket 1200 against thepipe or conduit to form a liquid-tight seal against the pipe or conduit,a wall gasket 1400, a ring gasket assembly 1500, an outer ring assembly1600 to compress the wall gasket 1400 against the sump wall to form aliquid-tight seal between the outer ring assembly 1600 and the sumpwall, and a clamp 1700 (e.g., a high torque band clamp or any othersuitable type of clamp) configured to surround the outer ring assembly1600 and to compress the ring gasket assembly 1500 between the inner andouter ring assemblies 1300, 1600 to form a liquid-tight seal between theinner ring assembly 1300 and the outer ring assembly 1600. In theillustrated embodiment, the inner ring assembly 1300 includes a firstinner ring half 1301 and a second inner ring half 1302, the ring gasketassembly 1500 includes a first ring gasket half 1501 and a second ringgasket half 1502, and the outer ring assembly 1600 includes a firstouter ring half 1601 and a second outer ring half 1602. The first outerring half 1601 is configured to engage the first ring gasket half 1501,and the first ring gasket half 1501 is configured to engage the firstinner ring half 1301 and/or the second inner ring half 1302. The secondouter ring half 1602 is configured to engage the second ring gasket half1502, and the second ring gasket half 1502 is configured to engage thefirst inner ring half 1301 and/or the second inner ring half 1302.

As illustrated in FIG. 13, the pipe gasket 1200 includes an annularportion 1201 defining a central opening 1202 configured to accommodatethe pipe or conduit passing through the wall of the containment sump,and a pair of stem portions 1203, 1204 extending in opposite directionsfrom opposing portions (e.g., diametrically opposed portions) of theannular portion 1201.

Additionally, in the illustrated embodiment, the pipe gasket 1200includes a first rib 1205 extending along the length of one side of thefirst stem portion 1203, around one half of the annular portion 1201,and along the length of one side of the second stem portion 1204. In theillustrated embodiment, the pipe gasket 1200 also includes a second rib1206 extending along the length of the other side of the first stemportion 1203, around the other half of the annular portion 1201, andalong the length of the other side of the second stem portion 1204. Inthe illustrated embodiment, the first and second ribs 1205, 1206 are onopposite sides of the pipe gasket 1200. Additionally, in the illustratedembodiment, each of the first and second stem portions 1203, 1204include a central portion 1207 between the first and second ribs 1205,1206. In the illustrated embodiment, the stem portions 1203, 1204 eachhave a cruciform cross-sectional shape defined by the central portion1207 and the first and second ribs 1205, 1206.

In the illustrated embodiment, each of the first and second ribs 1205,1206 tapers from a relatively wider, inner end 1208 proximate to thecentral portion 1207 and a relatively narrower, outer end 1209 distal tothe central portion 1207. In one or more embodiments, the first andsecond ribs 1205, 1206 of the pipe gasket 1200 taper at an angle in arange from approximately 2 degrees to approximately 6 degrees. In one ormore embodiments, the first and second ribs 1205, 1206 of the pipegasket 1200 taper at an angle of approximately 4 degrees.

In the illustrated embodiment, the pipe gasket 1200 also includes asplit 1210 extending along the entire length of one of the stem portions1203 and through the annular portion 1201. The split 1210 enables atechnician to wrap the annular portion 1201 of the pipe fitting 1200around the pipe or conduit by spreading the stem portion 1203 about thesplit 1210, and then sliding the pipe gasket 1200 onto the pipe orconduit such that the pipe or conduit passes through the split 1210 andis received in the central opening 1202 of the pipe gasket 1200. In oneor more embodiments, the split 1210 may extend along the entire lengthof the pipe gasket 1200 such that, for example, the pipe gasket 1200 istwo separate components (e.g., the split 1210 may extend along long theentire length of one of the stem portions 1203, through the annularportion 1201, and along the entire length of the other stem portion 1204such that the pipe gasket 1200 is a split two-piece gasket).

As illustrated in FIGS. 14A-14C, each of the first and second inner ringhalves 1301, 1302 includes a semi-cylindrical sidewall 1303 having afront end 1304 and a rear end 1305, a rear cap plate 1306 at the rearend 1305 of the semi-cylindrical sidewall 1303, and a front cap plate1307 spaced forward of the rear cap plate 1306. In the illustratedembodiment, the front cap plate 1307 and the rear cap plate 1306 bothhave a semicircular shape or substantially a semicircular shape.Additionally, in the illustrated embodiment, the rear and front capplates 1306, 1307 are not provided with an opening (e.g., a hole)configured to accommodate the pipe gasket 1200 and the pipe or conduitpassing through the wall of the containment sump. However, as describedin more detail below, during installation of the penetration fittingassembly 1100, a technician drills holes through the rear and front capplates 1306, 1307 to accommodate the pipe gasket 1200 and the pipe orconduit passing through the wall of the containment sump. In thismanner, the penetration fitting assembly 1100 is configured toaccommodate a variety of different pipe offsets and angled (e.g.,canted) pipes relative to the wall of the containment sump.

In the illustrated embodiment, a channel 1308 is defined between thefront and rear cap plates 1306, 1307. The channels 1308 in the outer andinner cap plates 1306, 1307 are configured to accommodate the first andsecond ribs 1205, 1206 of the pipe gasket 1200. In one or moreembodiments, the channel 1308 may taper in a direction toward thesemi-cylindrical sidewall 1303 (e.g., the channel 1308 is wedge-shaped).In one or more embodiments, the taper of the channels 1308 in the firstand second inner ring halves 1301, 1302 may match or substantially matchthe taper of the first and second ribs 1205, 1206 of the pipe gasket1200 (e.g., the first and second ribs 1205, 1206 of the pipe gasket 1200are keyed to the channels 1308 in the first and second inner ring halves1301, 1302). For instance, in one or more embodiments, the channels 1308may taper at an angle in a range from approximately 2 degrees toapproximately 6 degrees (e.g., approximately 4 degrees). As described inmore detail below, the taper of the channels 1308 in the first andsecond inner ring halves 1301, 1302 and the corresponding taper of theribs 1205, 1206 of the pipe gasket 1200 is configured to secure thefirst and second ribs 1205, 1206 of the pipe gasket 1200 to the firstand second inner ring halves 1301, 1302 with a friction fit.Additionally, in the illustrated embodiment, the first and second ribs1205, 1206 of the pipe gasket 1200 have a generally rectangularcross-sectional shape, although in one or more embodiments, the firstand second ribs 1205, 1206 may have any other suitable cross-sectionalshape depending on the configuration of the channels 1308 in the firstand second inner ring halves 1301, 1302, such as, for instance, a squarecross-sectional shape ora rounded (e.g., semi-circular) cross-sectionalshape.

In the illustrated embodiment, the length of the pipe gasket 1200 (e.g.,the distance between ends of the stem portions 1203, 1204) is longerthan a width (e.g., a diameter) of the first and second inner ringhalves 1301, 1302 together. As described in more detail below, thelonger length of the pipe gasket 1200 enables a technician to slide thepipe gasket 1200 along the channels 1308 in the first and second innerring halves 1301, 1302 to locate the annular portion 1201 based on theposition of the pipe or conduit. For instance, if the pipe or conduitpasses through the wall of the containment sump at an oblique angle(e.g., the pipe or conduit is not orthogonal to the wall of thecontainment sump), the longer length of the pipe gasket 1200 enables atechnician to locate the annular portion 1201 and the central opening1202 of the pipe gasket 1200 in a position that is not concentric withthe first and second inner ring halves 1301, 1302 (e.g., the longerlength of the pipe gasket enables a technician to locate the annularportion 1201 and the central opening 1202 of the pipe gasket 1200radially off-center with respect to the outer and inner cap plates 1306,1307 of the first and second inner ring halves 1301, 1302).

Additionally, in the illustrated embodiment, opposite ends 1309, 1310 ofthe semi-cylindrical sidewall 1303 of each of the first and second innerring halves 1301, 1302 include notches 1311, 1312, respectively, alignedwith the channel 1308 and proximate to first and second mating surfaces1313, 1314, respectively, of the first and second inner ring halves1301, 1302. Additionally, in the illustrated embodiment, the notches1311, 1312 taper to the same or substantially the same extent as thechannel 1308 (e.g., the notches 1311, 1312 may taper at an angle in arange from approximately 2 degrees to approximately 6 degrees, such asapproximately 4 degrees). The pair of notches 1311, 1312 in each of thefirst and second inner ring halves 1301, 1302 are configured toaccommodate the first and second ribs 1205, 1206 of the pipe gasket1200. The configuration (e.g., the shape and size) of the notches 1311,1312 may match or substantially match the configuration (e.g., the shapeand size) of the first and second ribs 1205, 1206 of the pipe gasket1200. Although in the illustrated embodiment the notches 1311, 1312 havea rectangular cross-sectional shape, in one or more embodiments thenotches 1311, 1312 may have any other suitable shape depending on theconfiguration of the first and second ribs 1205, 1206 of the pipe gasket1200.

In the illustrated embodiment, each of the first and second inner ringhalves 1301, 1302 also includes a semi-annular groove 1314 in an outersurface 1315 of the semi-cylindrical sidewall 1303. As described in moredetail below, the semi-annular groove 1314 in each of the first andsecond inner ring halves 1301, 1302 are configured to accommodate orreceive a portion of the first and second ring gasket halves 1501, 1502,respectively, to create a fluid-tight seal between the inner ringassembly 1300 and the outer ring assembly 1600.

Additionally, in the illustrated embodiment, a front surface 1316 of thefront cap plate 1307 of each of the first and second inner ring halves1301, 1302 includes a semi-annular recess 1317 proximate to an outersidewall surface 1318 of the front cap plate 1307. As described in moredetail below, the semi-annular recesses 1317 in the first and secondinner ring halves 1301, 1302 are configured to accommodate a portion ofthe wall gasket 1400.

As illustrated in FIGS. 15A-15C, each of the first and second ringgasket halves 1501, 1502 includes a semi-annular portion 1503, a firstflange 1504 extending radially outward from a first end 1505 of thesemi-annular portion 1503, and a second flange 1506 extending radiallyoutward from a second end 1507 of the semi-annular portion 1503.Additionally, in the illustrated embodiment, an inner surface 1508 ofthe semi-annular portion 1503 includes a semi-annular projection 1509extending radially inward, and an outer surface 1510 of the semi-annularportion opposite the inner surface 1508 includes a correspondingsemi-annular recess 1511 (e.g., a semi-annular groove) extendingradially inward. Additionally, in the illustrated embodiment, an outersurface 1512, 1513 of each of the first and second flanges 1504, 1506includes an outwardly extending projection 1514, 1515 (e.g., a rib),respectively, aligned with the recess 1511 in the outer surface 1510 ofthe semi-annular portion 1503. The semi-annular projections 1509 of thefirst and second ring gasket halves 1501, 1502 are configured to extendinto the semi-annular grooves 1314 of the first and second inner ringhalves 1301, 1302.

In the illustrated embodiment, the configuration of first ring gaskethalf 1501 is identical to the configuration of the second ring gaskethalf 1502, which is configured to reduce manufacturing costs andsimplify installation because the technician does not need todistinguish between the two ring gasket halves 1501, 1502. However, inone or more embodiments, the first ring gasket half 1501 may have adifferent configuration than the second ring gasket half 1502. The firstand second ring gasket halves 1501, 1502 may be formed of any materialsuitable configured to form a compression seal between the inner ringassembly and the outer ring assembly, such as, for example, rubber.

As illustrated in FIGS. 16A-16D, each of the first and second outer ringhalves 1601, 1602 includes a semi-annular portion 1603 including a frontsurface 1604 configured to face toward the wall of the sump, a rearsurface 1605 opposite the front surface 1604, an inner sidewall surface1606 facing radially inward, an outer sidewall surface 1607 opposite theinner sidewall surface 1606 facing radially outward, and mating surfaces1608, 1609 at ends of the semi-annular portion 1603. Additionally, inthe illustrated embodiment, each of the first and second outer ringhalves 1601, 1602 includes a semi-annular projection 1610 (e.g., asemi-annular rib) extending radially inward from the inner sidewallsurface 1606. The semi-annular projections 1610 (e.g., the semi-annularribs) of the first and second outer ring halves 1601, 1602 areconfigured to extend into the semi-annular recesses 1511 (e.g., thesemi-annular grooves) in the outer surfaces 1510 of the first and secondring gasket halves 1501, 1502. The configuration (e.g., the size andshape) of the semi-annular projections 1610 of the first and secondouter ring halves 1601, 1602 may the same as or substantially the sameas the configuration (e.g., the size and shape) of the semi-annularrecesses 1511 of the first and second ring gasket halves 1501, 1502.

In the illustrated embodiment, each of the first and second outer ringhalves 1601, 1602 also includes a series of counterbores 1611 extendingfrom the front surface 1604 to the rear surface 1605. The counterbores1611 are configured to receive fasteners securing the first and secondouter ring halves 1601, 1602 to the sump wall and compressing the wallgasket 1400 against the sump wall. Additionally, in the illustratedembodiment, each of the counterbores 1611 includes a first relativelywider portion 1612 extending from the rear surface 1605 toward the frontsurface 1604, a second relatively wider portion 1613 extending from thefront surface 1604 toward the rear surface 1605, a relatively narrowerintermediate portion 1614 between the first and second relatively widerportions 1612, 1613, and a taper 1615 connecting the second relativelywider portion 1613 to the relatively narrower intermediate portion 1614.

In the illustrated embodiment, the first and second mating surfaces1608, 1609 of each of the first and second outer ring halves 1601, 1602includes notches 1616, 1617, respectively. The notches 1616, 1617 areconfigured to accommodate the projections 1514, 1515 on the outersurfaces 1512, 1513 of the first and second flanges 1504, 1506 of thefirst and second ring gasket halves 1501, 1502. The configuration (e.g.,the size and shape) of the notches 1616, 1617 may be the same as orsubstantially the same as the configuration (e.g., the size and shape)of the projections 1514, 1515.

Additionally, in the illustrated embodiment, each of the first andsecond outer ring halves 1601, 1602 includes a semi-annular ridge 1618at an interface between the front surface 1604 and the outer sidewallsurface 1607. The semi-annular ridge 1618 extends forward (i.e., towardthe sump wall) away from the front surface 1604. In the illustratedembodiment, each of the first and second outer rings halves 1601, 1602includes a semi-annular recess 1619 proximate to the semi-annular ridge1617. The semi-annular recess 1619 is spaced inward toward the innersidewall surface 1606 relative to the semi-annular ridge 1618 (e.g., thesemi-annular recess 1619 is between the semi-annular ridge 1618 and theinterface between the front surface 1604 and the inner sidewall surface1606).

In the illustrated embodiment, each of the first and second outer ringhalves 1601, 1602 also includes a semi-annular recess 1620 in the outersidewall surface 1607. In the illustrated embodiment, the semi-annularrecess 1620 does not extend all the way to the front surface 1604 or therear surface 1605 such that front and rear lips 1621, 1622,respectively, are formed on the outer sidewall surface 1607. Thesemi-annular recesses 1620 in the first and second outer ring halves1601, 1602 are configured to accommodate the clamp 1700, and the frontand rear lips 1621, 1622 are configured to retain the clamp 1700 on thefirst and second outer ring halves 1601, 1602. That is, the clamp 1700is configured to secure the first and second outer ring halves 1601,1602 together, and the front and rear lips 1621, 1622 are configured tomaintain the position of the clamp 1700 on the outer sidewall surfaces1607 and thereby prevent the clamp 1700 from inadvertently disengagingthe first and second outer ring halves 1601, 1602.

As illustrated in FIGS. 17A-17D, the wall gasket 1400 is a split ringhaving a front surface 1401, a rear surface 1402 opposite the frontsurface 1401, an inner sidewall surface 1403, and an outer sidewallsurface 1404. When the penetration fitting 1100 is installed, the frontsurface 1401 faces toward the sump wall, and the rear surface 1402 facesaway from the sump wall. The wall gasket 1400 defines a central opening1405 and includes a slit or split 1406 that opens up into the centralopening 1405 that enables the wall gasket 1400 to be installed around apipe or gasket. That is, the wall gasket 1400 can be spread open aboutthe split 1406 such that the pipe or conduit can pass through the split1406 and into the central opening 1405, and then the wall gasket 1400can be closed around the pipe or conduit. In the illustrated embodiment,the wall gasket 1400 includes split interlocking features that areconfigured to secure the wall gasket 1400 in the closed configuration.In the illustrated embodiment, the wall gasket 1400 includes a first tab1407 at one end of the wall gasket 1400 proximate to the split 1406, anda second tab 1408 at the other end of the wall gasket 1400 proximate tothe split 1406. The first and second tabs 1407, 1408 are configured tooverlap each other (e.g., the first and second tabs 1407, 1408 form alap joint). Additionally, in the illustrated embodiment, the first tab1407 includes a male locking feature 1409, and the second tab 1408includes a female locking feature 1410 configured to receive oraccommodate the male locking feature 1409. In one or more embodiments,the wall gasket 1400 may not be provided with the split 1406 and atechnician may cut or otherwise form the split 1406 during installationof the penetration fitting assembly 1100.

In the illustrated embodiment, the wall gasket 1400 also includes aseries of circumferentially arranged openings 1411 (e.g., holes)configured to receive fasteners securing the wall gasket 1400 to thesump wall. Additionally, in the illustrated embodiment, the wall gasket1400 includes an outer annular lip 1412 (e.g., an O-ring) at aninterface between the rear surface 1402 and the outer sidewall surface1404, and an inner annular lip 1413 (e.g., an O-ring) at an interfacebetween the rear surface 1402 and the inner sidewall surface 1403. Theinner and outer annular lips 1413, 1412 extend rearward away from therear surface 1402. When the penetration fitting assembly 1100 isinstalled, the semi-annular recesses 1317 of the first and second innerring halves 1301, 1302 are configured to accept or accommodate the innerannular lip 1413 of the wall gasket 1400, and the semi-annular recesses1619 of the first and second outer ring halves 1601, 1602 are configuredto accept or accommodate the outer annular lip 1412 of the wall gasket1400. The engagement between the semi-annular recesses 1317 of the firstand second inner ring halves 1301, 1302 and the inner annular lip 1413of the wall gasket 1400 is configured to register (i.e., locate) theinner ring assembly 1300 to the wall gasket 1400, and the engagementbetween the semi-annular recesses 1619 of the first and second outerring halves 1601, 1602 and the outer annular lip 1412 of the wall gasket1400 is configured to register (i.e., locate) the outer ring assembly1600 to the wall gasket 1400.

In the illustrated embodiment, the wall gasket 1400 also includes aseries of screw seals 1414 in the openings 1411. In the illustratedembodiment, each screw seal 1414 includes a stem portion 1415 extendingthrough the opening 1411, a tail portion 1416 connected to the stemportion 1415 and overlapping the front surface 1401, and a head portion1417 connected to the stem portion 1415 and overlapping the rear surface1402. Each of the screw seals 1414 also defines an opening 1418configured to accommodate a fastener securing the outer ring assembly1600 and the wall gasket 1400 to the wall of the sump. In theillustrated embodiment, the head portion 1417 of each of the screw seals1414 tapers in a direction away from the rear surface 1402. The taperedhead portions 1417 of the screw seals 1414 are configured to extend intothe relatively wider portion 1613 and the taper 1615 of each of thecounterbores 1611 in the first and second outer ring halves 1601, 1602when the penetration fitting assembly 1100 is installed (i.e., therelatively wider portion 1613 and the taper 1615 of each of thecounterbores 1611 in the first and second outer ring halves 1601, 1602are configured to accommodate the tapered head portions 1417 of thescrew seals 1414 of the wall gasket 1400). The wall gasket 1400 may beformed of any material suitable configured to form a compression sealbetween the outer ring assembly 1600 and the sump wall, such as, forexample, rubber.

In one or more embodiments in which the sump wall is curved (e.g.,rounded), the penetration fitting assembly 1100 may include an adaptergasket 1800 (shown in FIGS. 18A-18D) configured to be positioned betweenthe sump wall and the wall gasket 1400. In the illustrated embodiment,the adapter gasket 1800 is a ring or annular member including a curved(e.g., rounded) front surface 1801, a flat or substantially flat (e.g.,planar or substantially planar) rear surface 1802 opposite the curvedfront surface 1801, an inner sidewall surface 1803, and an outersidewall surface 1804. In one or more embodiments, the contour orprofile of the curved front surface 1801 may match or substantiallymatch the contour or profile of the sump wall. When the penetrationfitting 1100 is installed, the curved front surface 1801 faces towardthe sump wall, and the rear surface 1802 faces away from the sump wall.Furthermore, in the illustrated embodiment, the adapter gasket 1800includes a series of circumferentially arranged openings (e.g., holes)1805 extending from the curved front surface 1801 to the rear surface1802. The openings 1805 are configured to accommodate fasteners forsecuring the adapter gasket 1800 to the sump wall. Additionally, in theillustrated embodiment, the number of openings 1805 exceeds the numberof fasteners utilized to secure the adapter gasket 1800 to the sumpwall, and the openings 1805 are therefore also configured to increasethe flexibility of the adapter gasket 1800 and to thereby aid inconforming the curved front surface 1801 to the contour of the sumpwall.

In the illustrated embodiment, the adapter gasket 1800 also includes anouter annular recess or groove 1806 proximate to an interface betweenthe rear surface 1802 and the outer sidewall surface 1804, and an innerannular recess or groove 1807 proximate to an interface between the rearsurface 1802 and the inner sidewall surface 1803. The outer and innerannular grooves 1806, 1807 are configured to accommodate seals (e.g.,O-rings) to form a fluid-tight seal between the adapter gasket 1800 andthe wall gasket 1400.

The adapter gasket 1800 also defines a central opening 1808 configuredto accommodate an angled pipe or conduit. Additionally, in theillustrated embodiment, the adapter gasket 1800 includes a slit or split1809 that opens up into the central opening 1808 that enables theadapter gasket 1800 to be installed around a pipe or gasket. That is,the adapter gasket 1800 can be spread open about the split 1809 suchthat the pipe or conduit can pass through the split 1809 and into thecentral opening 1808, and then the adapter gasket 1800 can be closedaround the pipe or conduit. In the illustrated embodiment, the adaptergasket 1800 also includes split interlocking features that areconfigured to secure the wall gasket 1800 in the closed configuration.In the illustrated embodiment, the adapter gasket 1800 includes a firsttab 1810 at one end of the adapter gasket 1800 proximate to the split1809, and a second tab 1811 at the other end of the adapter gasket 1800proximate to the split 1809. The first and second tabs 1810, 1811 areconfigured to overlap each other (e.g., the first and second tabs 1810,1811 form a lap joint). Additionally, in the illustrated embodiment, thefirst tab 1810 includes a male locking feature 1812, and the second tab1811 includes a female locking feature 1813 configured to receive oraccommodate the male locking feature 1812. In one or more embodiments,the split 1800 of the adapter gasket 1800 may form any other suitabletype of joint, such as a butt joint, when the split 1800 is in theclosed configuration. Additionally, in one or more embodiments, theadapter gasket 1800 may not be provided with the split 1809 and atechnician may cut or otherwise form the split 1809 during installationof the penetration fitting assembly 1100.

FIGS. 19A-19B depict the penetration fitting assembly 1100 installedaround a pipe or conduit passing through an opening in a wall of a sump.To install the penetration fitting assembly 1100 around a pipe orconduit passing through an opening in a wall of containment sumpaccording to one embodiment of the present disclosure, the existing bootsealing the pipe or conduit to the wall in the containment sump is firstremoved, which exposes the fasteners (e.g., studs) securing the existingboot to the wall of the sump.

The wall gasket 1400 may then be installed. In one or more embodiments,the wall gasket 1400 may be installed by spreading the wall gasket 1400about the split 1406 (or cutting the split 1406 in the wall gasket 1400and then spreading the wall gasket about the split 1406) and thensliding the wall gasket 1400 onto the pipe or conduit such that the pipeor conduit passes through the split 1406 and is received in the centralopening 1405 of the wall gasket 1400. The split 1406 may then be closedand the ends of the wall gasket 1400 may be secured together. In oneembodiment, the split 1406 in the wall gasket 1400 may be closed suchthat the first and second tabs 1407, 1408 overlap each other, and themale locking feature 1409 of the first tab 1407 is inserted into thefemale locking feature 1410 of the second tab 1408. The wall gasket 1400may then be slid along the pipe or conduit toward the wall of the sumpsuch that the fasteners (e.g., studs) that were utilized to secure theboot to the wall of the sump pass through the openings 1418 in the screwseals 1414. When the wall gasket 1400 is installed, the front surface1401 of the wall gasket 1400 faces toward the sump wall and the rearsurface 1402 faces away from the sump wall.

In an embodiment in which the sump wall is curved (e.g., rounded), themethod of installing the penetration fitting assembly 1100 may includeinstalling the adapter gasket 1800 before installing the wall gasket1400. In one or more embodiments, the adapter gasket 1800 may beinstalled by spreading the wall gasket 1800 about the split 1809 (orcutting the split 1809 in the adapter gasket 1800 and then spreading theadapter gasket 1800 about the split 1809) and then sliding the adaptergasket 1800 onto the pipe or conduit such that the pipe or conduitpasses through the split 1809 and is received in the central opening1808 of the adapter gasket 1800. The split 1809 may then be closed andthe ends of the adapter gasket 1800 may be secured together. In oneembodiment, the split 1809 in the adapter gasket 1800 may be closed suchthat the first and second tabs 1810, 1811 overlap each other (forming alap joint), and the male locking feature 1812 of the first tab 1810 isinserted into the female locking feature 1813 of the second tab 1811. Inone or more embodiments, the adapter gasket 1800 may form a butt jointwhen the adapter gasket 1800 is closed. The adapter gasket 1800 may thenbe slid along the pipe or conduit toward the wall of the sump such thatthe fasteners (e.g., studs) that were utilized to secure the boot to thewall of the sump pass through the openings 1805. When the adapter gasket1800 is installed, the curved front surface 1801 of the adapter gasket1800 faces toward the sump wall and the rear surface 1802 faces awayfrom the sump wall. Additionally, when the wall gasket 1400 isinstalled, the front surface 1401 of the wall gasket 1400 engages therear surface 1802 of the adapter gasket 1800.

Openings 1317, 1318 may then be cut (e.g., with a hole saw) in the rearand front cap plates 1306, 1307, respectively, of each of the first andsecond inner ring halves 1301, 1302 to accommodate the pipe or conduit.The holes 1317, 1318 are depicted best in FIG. 12A. In one embodiment,the openings 1317, 1318 may be cut in the inner ring halves 1301, 1302by first inserting the ribs 602, 603 of the disposable spacer 600 (shownin FIGS. 7A-7C) into the channels 1308 of the inner ring halves 1301,1302. Once the disposable spacer 600 has been inserted into the channels1308 of the inner ring halves 1301, 1302, the openings 1306, 1307 may becut along the joint between the first and second inner ring halves 1301,1302 and through the disposable spacer 600 at any position within oralong the one or more indicia 607 on the upper surface 606 of thedisposable spacer 600.

The pipe gasket 1200 may then be installed around the pipe or conduit.In one or more embodiments, the pipe gasket 1200 may be installed byspreading the stem portion 1203 about the split 1210, and then slidingthe pipe gasket 1200 onto the pipe or conduit such that the pipe orconduit passes through the split 1210 and is received in the centralopening 1202 of the pipe gasket 1200.

The inner ring halves 1301, 1302, with the openings 1317, 1318 cut inthe rear and front cap plates 1306, 1307, may then be brought togetheraround the pipe gasket 1200 and the pipe or conduit passingtherethrough. When the inner ring halves 1301, 1302 are brought togetheraround the pipe gasket 1200, the ribs 1205, 1206 of the pipe gasket 1200are received in the tapered channels 1308 of the inner ring halves 1301,1302 with a friction fit.

The ring gasket assembly 1500 may then be installed. In one embodiment,installing the ring gasket assembly 1500 includes bringing the first andsecond ring gasket halves 1501, 1502 together around the inner ringassembly 1300 (e.g., the first and second inner ring halves 1301, 1302).When the first and second ring gasket halves 1501, 1502 are broughttogether around the inner ring assembly 1300, the semi-annularprojections 1509 of the first and second ring gasket halves 1501, 1502are received in the semi-annular grooves 1314 of the first and secondinner ring halves 1301, 1302 with a friction fit. Additionally, when thefirst and second ring gasket halves 1501, 1502 are brought togetheraround the inner ring assembly 1300, the first and second flanges 1504,1506 of the first ring gasket half 1501 contacts the first and secondflanges 1504, 1506, respectively, of the second ring gasket half 1502.

The outer ring assembly 1600 may then be installed. In one embodiment,installing the outer ring assembly 1600 includes brining the first andsecond outer ring halves 1601, 1602 together around the ring gasketassembly 1500 (e.g., the first and second ring gasket halves 1501,1502). When the first and second outer ring halves 1601, 1602 arebrought together around the ring gasket assembly 1500, the semi-annularprojections 1610 on the inner sidewall surfaces 1606 of the outer ringhalves 1601, 1602 are received in the semi-annular recess 1511 in theouter surfaces 1510 of the ring gasket halves 1501, 1502, and theoutwardly extending projections 1514, 1515 on the first and secondflanges 1504, 1506 of the ring gasket halves 1501, 1502 are received inthe notches 1616, 1617 in the first and second mating surfaces 1608,1609 of the outer ring halves 1601, 1602, with a friction fit.

Alternatively, in one or more embodiments, the first and second ringgasket halves 1501, 1502 of the ring gasket assembly 1500 may beconnected to the first and outer ring halves 1601, 1602 and then thering gasket halves 1501, 1502 and the outer ring halves 1601, 1602 as aunit may be brought together around the inner ring halves 1301, 1302.

The first and second outer ring halves 1601, 1602 may then be securedtogether with the clamp 1700. In one or more embodiments, when the clamp1700 is installed, the clamp 1700 is received in the semi-annularrecesses 1620 in the outer sidewall surfaces 1607 of the outer ringhalves 1601, 1602 and the clamp 1700 is retained between the front andrear lips 1621, 1622 on the outer sidewall surfaces 1607 of the outerring halves 1601, 1602. The clamp 1700 is configured to compress thering gasket halves 1501, 1502 between the inner ring halves 1301, 1302and the outer ring halves 1601, 1602 to create a liquid-tight orsubstantially liquid-tight seal between the inner ring halves 1301, 1302and the outer ring halves 1601, 1602, and to compress the pipe gasket1200 against the pipe or conduit to create a liquid-tight or asubstantially-liquid tight seal against the pipe or conduit.

The outer ring halves 1601, 1602 may be secured to the sump wall beforeor after coupling the outer ring halves 1601, 1602 with the clamp 1700.In one embodiment, the outer ring halves 1601, 1602 may be secured tothe sump wall by moving the outer ring halves 1601, 1602 toward the sumpwall such that the tapered head portion 1417 of each of the screw seals1414 of the wall gasket 1400 are received in the tapered portion 1615 ofthe counterbores 1611 in the first and second outer ring halves 1601,1602, and the fasteners extending up through the counterbores 1611 andinto the first relatively wider portion 1612 of the counterbores 1611.The fasteners may be secured to the outer ring halves 1601, 1602 withnuts accommodated in the first relatively wider portions 1612 of thecounterbores 1611. Additionally, when the first and second outer ringhalves 1601, 1602 are secured together by the clamp 1700 and are securedto the sump wall by the fasteners, the outer annular lip 1412 of thewall gasket 1400 is received in the semi-annular recesses 1619 of thefirst and second outer ring halves 1601, 1602 and the inner annular lip1413 of the wall gasket 1400 is received in the semi-annular recesses1317 of the first and second inner ring halves 1301, 1302 to register(i.e., locate) the outer ring assembly 1600 and the inner ring assembly1300 to the wall gasket 1400.

Accordingly, in the illustrated embodiment, the penetration fittingassembly 1100 forms liquid-tight or substantially liquid-tight sealsagainst the wall of the containment sump and around the pipe or conduitwithout the use of adhesives (i.e., with only compression seals),although in one or more embodiments, one or more adhesives may beutilized to forms liquid-tight or substantially liquid-tight sealsagainst the wall of the containment sump and/or around the pipe orconduit passing through an opening in the wall of the containment sump.For example, in one or more embodiments, sealant may be applied to eachof the gaskets (e.g., the pipe gasket 1200, the wall gasket 1400, andthe first and second ring gasket halves 1501, 1502).

With reference now to FIGS. 20A-20B, a penetration fitting assembly 1900according to another embodiment of the present disclosure includes apipe gasket 2000 configured to surround a pipe or conduit passingthrough an opening in a wall of a containment sump, a ring assembly 2100configured to compress the pipe gasket 2000 against the pipe or conduitto form a liquid-tight seal against the pipe or conduit, a wall gasket2200 configured to be compressed by the ring assembly 2100 against thesump wall to form a liquid-tight seal between the ring assembly 2100 andthe sump wall, and a clamp 2300 (e.g., a high torque band clamp or anyother suitable type of clamp) configured to surround the ring assembly2100 and to compress the pipe gasket 2000 against the pipe or conduit toform a liquid-tight seal between the pipe gasket 2000 and the pipe orconduit. In the illustrated embodiment, the ring assembly 2100 includesa first ring half 2101 and a second inner ring half 2101.

As illustrated in FIGS. 21A-21D, the pipe gasket 2000 includes anannular portion 2001 defining a central opening 2002 configured toaccommodate the pipe or conduit passing through the wall of thecontainment sump, and a pair of stem portions 2003, 2004 extending inopposite directions from opposing portions (e.g., diametrically opposedportions) of the annular portion 2001.

Additionally, in the illustrated embodiment, the pipe gasket 2000includes a first rib 2005 extending along the length of one side of thefirst stem portion 2003 and along the length of one side of the secondstem portion 2004. In the illustrated embodiment, the pipe gasket 2000also includes a second rib 2006 extending along the length of the otherside of the first stem portion 2003 and along the length of the otherside of the second stem portion 2004. In the illustrated embodiment, thefirst and second ribs 2005, 2006 are on opposite sides of the pipegasket 2000. Additionally, in the illustrated embodiment, each of thefirst and second stem portions 2003, 2004 include a central portion 2007between the first and second ribs 2005, 2006. In the illustratedembodiment, the stem portions 2003, 2004 each have a cruciformcross-sectional shape defined by the central portion 2007 and the firstand second ribs 2005, 2006.

In the illustrated embodiment, each of the first and second ribs 2005,2006 tapers from a relatively wider, inner end 2008 proximate to thecentral portion 2007 and a relatively narrower, outer end 2009 distal tothe central portion 2007. In one or more embodiments, the first andsecond ribs 2005, 2006 of the pipe gasket 2000 taper at an angle in arange from approximately 2 degrees to approximately 6 degrees. In one ormore embodiments, the first and second ribs 2005, 2006 of the pipegasket 2000 taper at an angle of approximately 4 degrees.

In the illustrated embodiment, the pipe gasket 2000 also includes asplit 2010 extending along the entire length of one of the stem portions2003 and through the annular portion 2001. The split 2010 enables atechnician to wrap the annular portion 2001 of the pipe fitting 2000around the pipe or conduit by spreading the stem portion 2003 about thesplit 2010, and then sliding the pipe gasket 2000 onto the pipe orconduit such that the pipe or conduit passes through the split 2010 andis received in the central opening 2002 of the pipe gasket 2000. In oneor more embodiments, the split 2010 may extend along the entire lengthof the pipe gasket 2000 such that, for example, the pipe gasket 2000 istwo separate components (e.g., the split 2000 may extend along long theentire length of one of the stem portions 2003, through the annularportion 2001, and along the entire length of the other stem portion 2004such that the pipe gasket 2000 is a split two-piece gasket).

In the illustrated embodiment, the pipe gasket 2000 also includes firstand second semi-annular recesses (e.g., grooves) 2011, 2012 in an outersurface 2013 of the annular portion 2001 of the pipe gasket 2000. Eachof the first and second semi-annular recesses extends from the firststem portion 2003 to the second stem portion 2004. In one or moreembodiments, the first and second semi-annular notches 2011, 2012 maytaper radially inward at an angle in a range from approximately 2degrees to approximately 6 degrees (e.g., approximately 4 degrees).

As illustrated in FIGS. 22A-22D, each of the first and second ringhalves 2101, 2102 includes a semi-annular portion 2103 including a frontsurface 2104 configured to face toward the wall of the sump, a rearsurface 2105 opposite the front surface 2104, an inner sidewall surface2106 facing radially inward, an outer sidewall surface 2107 opposite theinner sidewall surface 2106 facing radially outward, and mating surfaces2108, 2109 at ends of the semi-annular portion 2103. Additionally, inthe illustrated embodiment, each of the first and second ring halves2101, 2102 includes a semi-annular projection 2110 (e.g., a semi-annularrib) extending radially inward from the inner sidewall surface 2106. Thesemi-annular projections 2110 (e.g., the semi-annular ribs) of the firstand second ring halves 2101, 2102 are configured to extend into thesemi-annular recesses 2011, 2012 (e.g., the semi-annular grooves) in theouter surface 2013 of the annular portion 2001 of the pipe gasket 2000.The configuration (e.g., the size and shape) of the semi-annularprojections 2110 of the first and second ring halves 2101, 2102 may bethe same as or substantially the same as the configuration (e.g., thesize and shape) of the semi-annular recesses 2011, 2012 of the pipegasket 2000.

In the illustrated embodiment, each of the first and second ring halves2101, 2102 also includes a series of counterbores 2111 extending fromthe front surface 2104 to the rear surface 2105. The counterbores 2111are configured to receive fasteners securing the first and second ringhalves 2101, 2102 to the sump wall and compressing the wall gasket 2200against the sump wall. Additionally, in the illustrated embodiment, eachof the counterbores 2111 includes a first relatively wider portion 2112extending from the rear surface 2105 toward the front surface 2104, asecond relatively wider portion 2113 extending from the front surface2104 toward the rear surface 2105, a relatively narrower intermediateportion 2114 between the first and second relatively wider portions2112, 2113, and a taper 2115 connecting the second relatively widerportion 2113 to the relatively narrower intermediate portion 2114.

In the illustrated embodiment, the first and second mating surfaces2108, 2109 of each of the first and second ring halves 2011, 2012includes notches 2116, 2117, respectively. The notches 2116, 2117 areconfigured to accommodate the first and second ribs 2005, 2006 on pipegasket 2000. The configuration (e.g., the size and shape) of the notches2116, 2117 may be the same as or substantially the same as theconfiguration (e.g., the size and shape) of the ribs 2005, 2006.

Additionally, in the illustrated embodiment, each of the first andsecond ring halves 2011, 2012 includes a semi-annular ridge 2118 at aninterface between the front surface 2104 and the outer sidewall surface2107. The semi-annular ridge 2118 extends forward (i.e., toward the sumpwall) away from the front surface 2104. In the illustrated embodiment,each of the first and second rings halves 2101, 2102 includes asemi-annular recess 2119 proximate to the semi-annular ridge 2118. Thesemi-annular recess 2119 is spaced inward toward the inner sidewallsurface 2106 relative to the semi-annular ridge 2118 (e.g., thesemi-annular recess 2119 is between the semi-annular ridge 2118 and theinterface between the front surface 2104 and the inner sidewall surface2106).

In the illustrated embodiment, each of the first and second ring halves2101, 2102 also includes a semi-annular recess 2120 in the outersidewall surface 2107. In the illustrated embodiment, the semi-annularrecess 2120 does not extend all the way to the front surface 2104 or therear surface 2105 such that front and rear lips 2121, 2122,respectively, are formed on the outer sidewall surface 2107. Thesemi-annular recesses 2120 in the first and second ring halves 2101,2102 are configured to accommodate the clamp 2300, and the front andrear lips 2121, 2122 are configured to retain the clamp 2300 on thefirst and second outer ring halves 2101, 2102. That is, the clamp 2300is configured to secure the first and second ring halves 2101, 2102together, and the front and rear lips 2121, 2122 are configured tomaintain the position of the clamp 2300 on the outer sidewall surfaces2107 and thereby prevent the clamp 2300 from inadvertently disengagingthe first and second outer ring halves 2101, 2102.

As illustrated in FIGS. 23A-23D, the wall gasket 2200 is a split ringhaving a front surface 2201, a rear surface 2202 opposite the frontsurface 2201, an inner sidewall surface 2203, and an outer sidewallsurface 2204. When the penetration fitting 1100 is installed, the frontsurface 2201 faces toward the sump wall, and the rear surface 2202 facesaway from the sump wall. The wall gasket 2200 defines a central opening2205 and includes a slit or split 2206 that opens up into the centralopening 2205 that enables the wall gasket 2200 to be installed around apipe or gasket. That is, the wall gasket 2200 can be spread open aboutthe split 2206 such that the pipe or conduit can pass through the split2206 and into the central opening 2205, and then the wall gasket 2200can be closed around the pipe or conduit. In the illustrated embodiment,the wall gasket 2200 includes split interlocking features that areconfigured to secure the wall gasket 2200 in the closed configuration.In the illustrated embodiment, the wall gasket 2200 includes a first tab2207 at one end of the wall gasket 2200 proximate to the split 2206, anda second tab 2208 at the other end of the wall gasket 2200 proximate tothe split 2206. The first and second tabs 2207, 2208 are configured tooverlap each other (e.g., the first and second tabs 2207, 2208 form alap joint). Additionally, in the illustrated embodiment, the first tab2207 includes a male locking feature 2209, and the second tab 2208includes a female locking feature 2210 configured to receive oraccommodate the male locking feature 2209. In one or more embodiments,the wall gasket 2200 may not be provided with the split 2206 and atechnician may cut or otherwise form the split 2206 during installationof the penetration fitting assembly 1100.

In the illustrated embodiment, the wall gasket 2200 also includes aseries of circumferentially arranged openings 2211 (e.g., holes)configured to receive fasteners securing the wall gasket 2200 to thesump wall. Additionally, in the illustrated embodiment, the wall gasket2200 includes an outer annular lip 2212 (e.g., an O-ring) at aninterface between the rear surface 2202 and the outer sidewall surface2204, and an inner annular lip 2213 (e.g., an O-ring) at an interfacebetween the rear surface 2202 and the inner sidewall surface 2203. Theinner and outer annular lips 2213, 2212 extend rearward away from therear surface 2202. When the penetration fitting assembly 1900 isinstalled, the semi-annular recesses 2119 of the first and second ringhalves 2101, 2102 are configured to accept or accommodate the outerannular lip 2212 of the wall gasket 2200. The engagement between thesemi-annular recesses 2119 of the first and second ring halves 2101,2102 and the outer annular lip 2212 of the wall gasket 2200 isconfigured to register (i.e., locate) the ring assembly 2100 to the wallgasket 2200.

In the illustrated embodiment, the wall gasket 2200 also includes aseries of screw seals 2214 in the openings 2211. In the illustratedembodiment, each screw seal 2214 includes a stem portion 2215 extendingthrough the opening 2211, a tail portion 2216 connected to the stemportion 2215 and overlapping the front surface 2201, and a head portion2217 connected to the stem portion 2215 and overlapping the rear surface2202. Each of the screw seals 2214 also defines an opening 2218configured to accommodate a fastener securing the ring assembly 2100 andthe wall gasket 2200 to the wall of the sump. In the illustratedembodiment, the head portion 2217 of each of the screw seals 2214 tapersin a direction away from the rear surface 2202. The tapered headportions 2217 of the screw seals 2214 are configured to extend into therelatively wider portion 2113 and the taper 2114 of each of thecounterbores 2111 in the first and second outer ring halves 2101, 2102when the penetration fitting assembly 1900 is installed (i.e., therelatively wider portion 2113 and the taper 2114 of each of thecounterbores 2111 in the first and second ring halves 2101, 2102 areconfigured to accommodate the tapered head portions 2217 of the screwseals 2214 of the wall gasket 2200). The wall gasket 2200 may be formedof any material suitable configured to form a compression seal betweenthe ring assembly 2100 and the sump wall, such as, for example, rubber.

In one or more embodiments in which the sump wall is curved (e.g.,rounded), the penetration fitting assembly 1900 may include an adaptergasket 2400 (shown in FIGS. 24A-24D) configured to be positioned betweenthe sump wall and the wall gasket 2200. The adapter gasket 2400 may bethe same as or similar to the embodiment of the adapter gasket 1800described above with reference to FIGS. 18A-18D.

FIGS. 25A-25B depict the penetration fitting assembly 1900 installedaround a pipe or conduit passing through an opening in a wall of a sump.To install the penetration fitting assembly 1900 around a pipe orconduit passing through an opening in a wall of containment sumpaccording to one embodiment of the present disclosure, the existing bootsealing the pipe or conduit to the wall in the containment sump is firstremoved, which exposes the fasteners (e.g., studs) securing the existingboot to the wall of the sump.

The wall gasket 2200 may then be installed. In one or more embodiments,the wall gasket 2200 may be installed by spreading the wall gasket 2200about the split 2206 (or cutting the split 2206 in the wall gasket 2200and then spreading the wall gasket about the split 2206) and thensliding the wall gasket 2200 onto the pipe or conduit such that the pipeor conduit passes through the split 2206 and is received in the centralopening 2205 of the wall gasket 2200. The split 2206 may then be closedand the ends of the wall gasket 2200 may be secured together. In oneembodiment, the split 2206 in the wall gasket 2200 may be closed suchthat the first and second tabs 2207, 2208 overlap each other, and themale locking feature 2209 of the first tab 2207 is inserted into thefemale locking feature 2210 of the second tab 2208. The wall gasket 2200may then be slid along the pipe or conduit toward the wall of the sumpsuch that the fasteners (e.g., studs) that were utilized to secure theboot to the wall of the sump pass through the openings 2218 in the screwseals 2214. When the wall gasket 2200 is installed, the front surface2201 of the wall gasket 2200 faces toward the sump wall and the rearsurface 2202 faces away from the sump wall.

In an embodiment in which the sump wall is curved (e.g., rounded), themethod of installing the penetration fitting assembly 1900 may includeinstalling the adapter gasket 2400 before installing the wall gasket2200. The adapter gasket 2400 may be installed in the same manner orsubstantially same manner as described above with reference to theinstallation of the adapter gasket 1800.

The pipe gasket 2000 may then be installed around the pipe or conduit.In one or more embodiments, the pipe gasket 2000 may be installed byspreading the stem portion 2003 about the split 2010, and then slidingthe pipe gasket 2000 onto the pipe or conduit such that the pipe orconduit passes through the split 2010 and is received in the centralopening 2002 of the pipe gasket 2000.

The ring assembly 2100 may then be installed. In one embodiment,installing the ring assembly 2100 includes brining the first and secondouter ring halves 2101, 2102 together around the pipe gasket 2000. Whenthe first and second ring halves 2101, 2102 are brought together aroundthe pipe gasket 200, the semi-annular projections 2110 on the innersidewall surfaces 2106 of the ring halves 2101, 2102 are received in thesemi-annular recesses 2011, 2012 in an outer surface 2013 of the annularportion 2001 of the pipe gasket 2000, and the ribs 2005, 2006 of thepipe gasket 2000 are received in the notches 2116, 2117 in the first andsecond mating surfaces 2108, 2109 of the ring halves 2101, 2102, with afriction fit.

The first and second ring halves 2101, 2102 may then be secured togetherwith the clamp 2300. In one or more embodiments, when the clamp 2300 isinstalled, the clamp 2300 is received in the semi-annular recesses 2119in the outer sidewall surfaces 2107 of the outer ring halves 2101, 2102and the clamp 2300 is retained between the front and rear lips 2120,2121 on the outer sidewall surfaces 2107 of the outer ring halves 2101,2102. The clamp 2300 is configured to compress the pipe gasket 2000against the pipe or conduit to create a liquid-tight or asubstantially-liquid tight seal against the pipe or conduit.

The ring halves 2101, 2102 may be secured to the sump wall before orafter coupling the ring halves 2101, 2102 with the clamp 2300. In oneembodiment, the ring halves 2101, 2102 may be secured to the sump wallby moving the ring halves 2101, 2102 toward the sump wall such that thetapered head portion 2217 of each of the screw seals 2214 of the wallgasket 2200 are received in the tapered portion 2115 of the counterbores2111 in the first and second ring halves 2101, 2102, and the fastenersextending up through the counterbores 2111 and into the first relativelywider portion 2112 of the counterbores 2111. The fasteners may besecured to the ring halves 2101, 2102 with nuts accommodated in thefirst relatively wider portions 2112 of the counterbores 2111.Additionally, when the first and second ring halves 2101, 2102 aresecured together by the clamp 2300 and are secured to the sump wall bythe fasteners, the outer annular lip 2212 of the wall gasket 2200 isreceived in the semi-annular recesses 2118 of the first and second ringhalves 2101, 2102 to register (i.e., locate) the ring assembly 1600 tothe wall gasket 2200.

Accordingly, in the illustrated embodiment, the penetration fittingassembly 1900 forms liquid-tight or substantially liquid-tight sealsagainst the wall of the containment sump and around the pipe or conduitwithout the use of adhesives (i.e., with only compression seals),although in one or more embodiments, one or more adhesives may beutilized to forms liquid-tight or substantially liquid-tight sealsagainst the wall of the containment sump and/or around the pipe orconduit passing through an opening in the wall of the containment sump.For example, in one or more embodiments, sealant may be applied to eachof the gaskets (e.g., the pipe gasket 2000 and the wall gasket 2200).

With reference now to FIGS. 26A-26B, a penetration fitting assembly 2500according to another embodiment of the present disclosure includes apipe gasket 2600 configured to surround a pipe or conduit passingthrough an opening in a wall of a containment sump, a ring assembly2700, a ring gasket assembly 2800 configured to form a liquid-tight sealbetween the pipe gasket 2600 and the ring assembly 2700, a wall gasket2900, and a clamp 3000 (e.g., a high torque band clamp or any othersuitable type of clamp) configured to surround the ring assembly 2700and to compress the ring gasket assembly 2800 between the pipe gasket2600 and the ring assembly 2700 to form a liquid-tight seal between thepipe gasket 2600 and the ring assembly 2700 and to compress the pipegasket 2600 against the pipe or conduit to form a fluid-tight sealagainst the pipe or conduit. In the illustrated embodiment, the ringassembly 2700 includes a first ring half 2701 and a second ring half2702, and the ring gasket assembly 2800 includes a first ring gaskethalf 2801 and a second ring gasket half 2802.

As illustrated in FIGS. 27A-27C, the pipe gasket 2600 includes anannular portion 2601 defining a central opening 2602 configured toaccommodate the pipe or conduit passing through the wall of thecontainment sump. In one or more embodiments, the central opening 2602may be concentric with the annular portion 2601. In one or moreembodiments, the central opening 2602 may not be concentric with theannular portion 2601 (i.e., the central opening 2602 may be offset froma centerline of the annular portion 2601). In the illustratedembodiment, the pipe gasket 2600 also includes an annular recess (e.g.,groove) 2603 in an outer surface 2604 of the annular portion 2601 of thepipe gasket 2600. In one or more embodiments, the annular recess 2603may taper radially inward at an angle in a range from approximately 2degrees to approximately 6 degrees (e.g., approximately 4 degrees). Inthe illustrated embodiment, the pipe gasket 2600 also includes a split2605 extending through one side of the annular portion 2601. In one ormore embodiments, the split 2605 may be formed by a technician duringinstallation of the penetration fitting assembly 2500. The split 2605enables a technician to wrap the annular portion 2601 of the pipefitting 2600 around the pipe or conduit by spreading the annular portion2601 about the split 2605, and then sliding the pipe gasket 2600 ontothe pipe or conduit such that the pipe or conduit passes through thesplit 2605 and is received in the central opening 2602 of the pipegasket 2600. In one or more embodiments, the split 2605 may extendthrough both sides of the annular portion 2601 such that, for example,the pipe gasket 2600 is two separate components (e.g., the pipe gasket2600 is a split two-piece gasket).

As illustrated in FIGS. 28A-28C, each of the first and second ringgasket halves 2801, 2802 includes a semi-annular portion 2803, a firstflange 2804 extending radially outward from a first end 2805 of thesemi-annular portion 2803, and a second flange 2806 extending radiallyoutward from a second end 2807 of the semi-annular portion 2803.Additionally, in the illustrated embodiment, an inner surface 2808 ofthe semi-annular portion 2803 includes a semi-annular projection 2809extending radially inward, and an outer surface 2810 of the semi-annularportion opposite the inner surface 2808 includes a correspondingsemi-annular recess 2811 (e.g., a semi-annular groove) extendingradially inward. Additionally, in the illustrated embodiment, an outersurface 2812, 2813 of each of the first and second flanges 2804, 2806includes an outwardly extending projection 2814, 2815 (e.g., a rib),respectively, aligned with the recess 2811 in the outer surface 2810 ofthe semi-annular portion 2803. The semi-annular projections 2809 of thefirst and second ring gasket halves 2801, 2802 are configured to extendinto the annular groove 2603 of the pipe gasket 2600.

In the illustrated embodiment, the configuration of first ring gaskethalf 2801 is identical to the configuration of the second ring gaskethalf 2802, which is configured to reduce manufacturing costs andsimplify installation because the technician does not need todistinguish between the two ring gasket halves 2801, 2802. However, inone or more embodiments, the first ring gasket half 2801 may have adifferent configuration than the second ring gasket half 2802. The firstand second ring gasket halves 2801, 2802 may be formed of any materialsuitable configured to form a compression seal between the inner ringassembly and the outer ring assembly, such as, for example, rubber.

As illustrated in FIGS. 29A-29D, each of the first and second ringhalves 2701, 2702 includes a semi-annular portion 2703 including a frontsurface 2704 configured to face toward the wall of the sump, a rearsurface 2705 opposite the front surface 2704, an inner sidewall surface2706 facing radially inward, an outer sidewall surface 2707 opposite theinner sidewall surface 2706 facing radially outward, and mating surfaces2708, 2709 at ends of the semi-annular portion 2703. Additionally, inthe illustrated embodiment, each of the first and second outer ringhalves 2701, 2702 includes a semi-annular projection 2710 (e.g., asemi-annular rib) extending radially inward from the inner sidewallsurface 2706. The semi-annular projections 2710 (e.g., the semi-annularribs) of the first and second outer ring halves 2701, 2702 areconfigured to extend into the semi-annular recesses 2811 (e.g., thesemi-annular grooves) in the outer surfaces 2810 of the first and secondring gasket halves 2801, 2802. The configuration (e.g., the size andshape) of the semi-annular projections 2710 of the first and second ringhalves 2701, 2702 may the same as or substantially the same as theconfiguration (e.g., the size and shape) of the semi-annular recesses2811 of the first and second ring gasket halves 2801, 2802.

In the illustrated embodiment, each of the first and second outer ringhalves 2701, 2702 also includes a series of counterbores 2711 extendingfrom the front surface 2704 to the rear surface 2705. The counterbores2711 are configured to receive fasteners securing the first and secondring halves 2701, 2702 to the sump wall and compressing the wall gasket2900 against the sump wall. Additionally, in the illustrated embodiment,each of the counterbores 2711 includes a first relatively wider portion2712 extending from the rear surface 2705 toward the front surface 2704,a second relatively wider portion 2713 extending from the front surface2704 toward the rear surface 2705, a relatively narrower intermediateportion 2714 between the first and second relatively wider portions2712, 2713, and a taper 2715 connecting the second relatively widerportion 2713 to the relatively narrower intermediate portion 2714.

In the illustrated embodiment, the first and second mating surfaces2708, 2709 of each of the first and second ring halves 2701, 2702includes notches 2716, 2717, respectively. The notches 2716, 2717 areconfigured to accommodate the projections 2814, 2815 on the outersurfaces 2812, 2813 of the first and second flanges 2804, 2806 of thefirst and second ring gasket halves 2801, 2802. The configuration (e.g.,the size and shape) of the notches 2716, 2717 may be the same as orsubstantially the same as the configuration (e.g., the size and shape)of the projections 2814, 2815.

Additionally, in the illustrated embodiment, each of the first andsecond ring halves 2701, 2702 includes a semi-annular ridge 2718 at aninterface between the front surface 2704 and the outer sidewall surface2707. The semi-annular ridge 2718 extends forward (i.e., toward the sumpwall) away from the front surface 2704. In the illustrated embodiment,each of the first and second rings halves 2701, 2702 includes a firstsemi-annular recess 2719 in the front surface 2704 proximate to thesemi-annular ridge 2718 and a second semi-annular recess 2720 in thefront surface 2704 proximate to the interface between the front surface2704 and the inner sidewall surface 2706. The first semi-annular recess2719 is spaced inward toward the inner sidewall surface 2706 relative tothe semi-annular ridge 2718, and the second semi-annular recess 2720 isspaced inward toward the inner sidewall surface 2706 relative to thefirst semi-annular recess 2719 (e.g., the first and second semi-annularrecesses 2719, 2720 are between the semi-annular ridge 2718 and theinterface between the front surface 2704 and the inner sidewall surface2706).

In the illustrated embodiment, each of the first and second ring halves2701, 2702 also includes a semi-annular recess 2721 in the outersidewall surface 2707. In the illustrated embodiment, the semi-annularrecess 2721 does not extend all the way to the front surface 2704 or therear surface 2705 such that front and rear lips 2722, 2723,respectively, are formed on the outer sidewall surface 2707. Thesemi-annular recesses 2721 in the first and second ring halves 2701,2702 are configured to accommodate the clamp 3000, and the front andrear lips 2722, 2723 are configured to retain the clamp 3000 on thefirst and second outer ring halves 2701, 2702. That is, the clamp 3000is configured to secure the first and second outer ring halves 2701,2702 together, and the front and rear lips 2721, 2722 are configured tomaintain the position of the clamp 3000 on the outer sidewall surfaces2707 and thereby prevent the clamp 3000 from inadvertently disengagingthe first and second outer ring halves 2701, 2702.

As illustrated in FIGS. 30A-30D, the wall gasket 2900 is a split ringhaving a front surface 2901, a rear surface 2902 opposite the frontsurface 2901, an inner sidewall surface 2903, and an outer sidewallsurface 2904. When the penetration fitting 1100 is installed, the frontsurface 2901 faces toward the sump wall, and the rear surface 2902 facesaway from the sump wall. The wall gasket 2900 defines a central opening2905 and includes a slit or split 2906 that opens up into the centralopening 2905 that enables the wall gasket 2900 to be installed around apipe or gasket. That is, the wall gasket 2900 can be spread open aboutthe split 2906 such that the pipe or conduit can pass through the split2906 and into the central opening 2905, and then the wall gasket 2900can be closed around the pipe or conduit. In the illustrated embodiment,the wall gasket 2900 includes split interlocking features that areconfigured to secure the wall gasket 2900 in the closed configuration.In the illustrated embodiment, the wall gasket 2900 includes a first tab2907 at one end of the wall gasket 2900 proximate to the split 2906, anda second tab 2908 at the other end of the wall gasket 2900 proximate tothe split 2906. The first and second tabs 2907, 2908 are configured tooverlap each other (e.g., the first and second tabs 2907, 2908 form alap joint). Additionally, in the illustrated embodiment, the first tab2907 includes a male locking feature 2909, and the second tab 2908includes a female locking feature 2910 configured to receive oraccommodate the male locking feature 2909. In one or more embodiments,the wall gasket 2900 may not be provided with the split 2906 and atechnician may cut or otherwise form the split 2906 during installationof the penetration fitting assembly 2500.

In the illustrated embodiment, the wall gasket 2900 also includes aseries of circumferentially arranged openings 2911 (e.g., holes)configured to receive fasteners securing the wall gasket 2900 to thesump wall. Additionally, in the illustrated embodiment, the wall gasket2900 includes an outer annular lip 2912 (e.g., an O-ring) at aninterface between the rear surface 2902 and the outer sidewall surface2904, and an inner annular lip 2913 (e.g., an O-ring) at an interfacebetween the rear surface 2902 and the inner sidewall surface 2903. Theinner and outer annular lips 2913, 2912 extend rearward away from therear surface 2902. When the penetration fitting assembly 2500 isinstalled, the semi-annular recesses 2719, 2720 of the first and secondring halves 2701, 2702 are configured to accept or accommodate the outerannular lip 2912 and the inner annular lip 2913, respectively, of thewall gasket 2900. The engagement between the semi-annular recesses 2719,2720 of the first and second ring halves 2701, 2702 and the outer andinner annular lip 2912, 2913 of the wall gasket 2900 is configured toregister (i.e., locate) the ring assembly 2700 to the wall gasket 2900.

In the illustrated embodiment, the wall gasket 2900 also includes aseries of screw seals 2914 in the openings 2911. In the illustratedembodiment, each screw seal 2914 includes a stem portion 2915 extendingthrough the opening 2911, a tail portion 2916 connected to the stemportion 2915 and overlapping the front surface 2901, and a head portion2917 connected to the stem portion 2915 and overlapping the rear surface2902. Each of the screw seals 2914 also defines an opening 2918configured to accommodate a fastener securing the ring assembly 2700 andthe wall gasket 2900 to the wall of the sump. In the illustratedembodiment, the head portion 2917 of each of the screw seals 2914 tapersin a direction away from the rear surface 2902. The tapered headportions 2917 of the screw seals 2914 are configured to extend into therelatively wider portion 2713 and the taper 2714 of each of thecounterbores 2711 in the first and second ring halves 2701, 2702 whenthe penetration fitting assembly 2500 is installed (i.e., the relativelywider portion 2713 and the taper 2714 of each of the counterbores 2711in the first and second outer ring halves 2701, 2702 are configured toaccommodate the tapered head portions 2917 of the screw seals 2914 ofthe wall gasket 2900). The wall gasket 2900 may be formed of anymaterial suitable configured to form a compression seal between the ringassembly 2700 and the sump wall, such as, for example, rubber.

In one or more embodiments in which the sump wall is curved (e.g.,rounded), the penetration fitting assembly 2500 may include an adaptergasket 3100 (shown in FIGS. 31A-31D) configured to be positioned betweenthe sump wall and the wall gasket 2900. The adapter gasket 3100 may bethe same as or similar to the embodiment of the adapter gasket 1800described above with reference to FIGS. 18A-18D.

FIGS. 32A-32B depict the penetration fitting assembly 2500 installedaround a pipe or conduit passing through an opening in a wall of a sump.To install the penetration fitting assembly 2500 around a pipe orconduit passing through an opening in a wall of containment sumpaccording to one embodiment of the present disclosure, the existing bootsealing the pipe or conduit to the wall in the containment sump is firstremoved, which exposes the fasteners (e.g., studs) securing the existingboot to the wall of the sump.

The wall gasket 2900 may then be installed. In one or more embodiments,the wall gasket 2900 may be installed by spreading the wall gasket 2900about the split 2906 (or cutting the split 2906 in the wall gasket 2900and then spreading the wall gasket about the split 2906) and thensliding the wall gasket 2900 onto the pipe or conduit such that the pipeor conduit passes through the split 2906 and is received in the centralopening 2905 of the wall gasket 2900. The split 2906 may then be closedand the ends of the wall gasket 2900 may be secured together. In oneembodiment, the split 2906 in the wall gasket 2900 may be closed suchthat the first and second tabs 2907, 2908 overlap each other, and themale locking feature 2909 of the first tab 2907 is inserted into thefemale locking feature 2910 of the second tab 2908. The wall gasket 2900may then be slid along the pipe or conduit toward the wall of the sumpsuch that the fasteners (e.g., studs) that were utilized to secure theboot to the wall of the sump pass through the openings 2918 in the screwseals 2914. When the wall gasket 2900 is installed, the front surface2901 of the wall gasket 2900 faces toward the sump wall and the rearsurface 2902 faces away from the sump wall.

In an embodiment in which the sump wall is curved (e.g., rounded), themethod of installing the penetration fitting assembly 2500 may includeinstalling the adapter gasket 3100 before installing the wall gasket2900. The adapter gasket 3100 may be installed in the same manner orsubstantially same manner as described above with reference to theinstallation of the adapter gasket 1800.

The pipe gasket 2600 may then be installed around the pipe or conduit.In one or more embodiments, the pipe gasket 2600 may be installed byspreading the annular portion 2601 about the split 2605, and thensliding the pipe gasket 2600 onto the pipe or conduit such that the pipeor conduit passes through the split 2605 and is received in the centralopening 2602 of the pipe gasket 2600.

The ring gasket assembly 2800 may then be installed. In one embodiment,installing the ring gasket assembly 2800 includes bringing the first andsecond ring gasket halves 2801, 2802 together around the pipe gasket2600. When the first and second ring gasket halves 2801, 2802 arebrought together around the pipe gasket 2600, the semi-annularprojections 2809 of the first and second ring gasket halves 2801, 2802are received in the semi-annular groove 2603 of the pipe gasket 2600with a friction fit. Additionally, when the first and second ring gaskethalves 2801, 2802 are brought together around the pipe gasket 2600, thefirst and second flanges 2804, 2806 of the first ring gasket half 2801contact the first and second flanges 2804, 2806, respectively, of thesecond ring gasket half 2802.

The ring assembly 2700 may then be installed. In one embodiment,installing the ring assembly 2700 includes brining the first and secondouter ring halves 2701, 2702 together around the ring gasket assembly2800 (e.g., the first and second ring gasket halves 2801, 2802). Whenthe first and second ring halves 2701, 2702 are brought together aroundthe ring gasket assembly 2800, the semi-annular projections 2710 on theinner sidewall surfaces 2706 of the ring halves 2701, 2702 are receivedin the semi-annular recess 2811 in the outer surfaces 2810 of the ringgasket halves 2801, 2802, and the outwardly extending projections 2814,2815 on the first and second flanges 2804, 2806 of the ring gaskethalves 2801, 2802 are received in the notches 2716, 2717 in the firstand second mating surfaces 2708, 2709 of the ring halves 2701, 2702,with a friction fit.

Alternatively, in one or more embodiments, the first and second ringgasket halves 2801, 2802 of the ring gasket assembly 2800 may beconnected to the first and ring halves 2701, 2702 and then the ringgasket halves 2801, 2802 and the outer ring halves 2701, 2702 as a unitmay be brought together around the pipe gasket 2600.

The first and second ring halves 2701, 2702 may then be secured togetherwith the clamp 3000. In one or more embodiments, when the clamp 3000 isinstalled, the clamp 3000 is received in the semi-annular recesses 2721in the outer sidewall surfaces 2707 of the ring halves 2701, 2702 andthe clamp 3000 is retained between the front and rear lips 2722, 2723 onthe outer sidewall surfaces 2707 of the ring halves 2701, 2702. Theclamp 3000 is configured to compress the ring gasket halves 2801, 2802between the pipe gasket 2600 and the ring halves 2701, 2702 to create aliquid-tight or substantially liquid-tight seal between the pipe gasket2600 and the ring halves 2701, 2702, and to compress the pipe gasket2600 against the pipe or conduit to create a liquid-tight or asubstantially-liquid tight seal against the pipe or conduit.

The outer ring halves 2701, 2702 may be secured to the sump wall beforeor after coupling the ring halves 2701, 2702 with the clamp 3000. In oneembodiment, the outer ring halves 2701, 2702 may be secured to the sumpwall by moving the ring halves 2701, 2702 toward the sump wall such thatthe tapered head portion 2917 of each of the screw seals 2914 of thewall gasket 2900 are received in the tapered portion 2715 of thecounterbores 2711 in the first and second outer ring halves 2701, 2702,and the fasteners extending up through the counterbores 2711 and intothe first relatively wider portion 2712 of the counterbores 2711. Thefasteners may be secured to the outer ring halves 2701, 2702 with nutsaccommodated in the first relatively wider portions 2712 of thecounterbores 2711. Additionally, when the first and second ring halves2701, 2702 are secured together by the clamp 3000 and are secured to thesump wall by the fasteners, the outer annular lip 2912 of the wallgasket 2900 is received in the first semi-annular recesses 2719 of thefirst and second outer ring halves 2701, 2702 and the inner annular lip2913 of the wall gasket 2900 is received in the second semi-annularrecesses 2720 of the first and second outer ring halves 2701, 2702 toregister (i.e., locate) the ring assembly 2700 to the wall gasket 2900.

Accordingly, in the illustrated embodiment, the penetration fittingassembly 2500 forms liquid-tight or substantially liquid-tight sealsagainst the wall of the containment sump and around the pipe or conduitwithout the use of adhesives (i.e., with only compression seals),although in one or more embodiments, one or more adhesives may beutilized to forms liquid-tight or substantially liquid-tight sealsagainst the wall of the containment sump and/or around the pipe orconduit passing through an opening in the wall of the containment sump.For example, in one or more embodiments, sealant may be applied to eachof the gaskets (e.g., the pipe gasket 2600, the wall gasket 2900, andthe first and second ring gasket halves 2801, 2802).

While this invention has been described in detail with particularreferences to exemplary embodiments thereof, the exemplary embodimentsdescribed herein are not intended to be exhaustive or to limit the scopeof the invention to the exact forms disclosed. Persons skilled in theart and technology to which this invention pertains will appreciate thatalterations and changes in the described structures and methods ofassembly and operation can be practiced without meaningfully departingfrom the principles, spirit, and scope of this invention, as set forthin the following claims. Although relative terms such as “outer,”“inner,” “upper,” “lower,” “below,” “above,” and similar terms have beenused herein to describe a spatial relationship of one element toanother, it is understood that these terms are intended to encompassdifferent orientations of the various elements and components of theinvention in addition to the orientation depicted in the figures.Additionally, as used herein, the term “substantially” and similar termsare used as terms of approximation and not as terms of degree, and areintended to account for the inherent deviations in measured orcalculated values that would be recognized by those of ordinary skill inthe art. As used herein, the term “semi,” such as in semi-annular,semi-cylindrical, and semi-circular, refers to half or substantiallyhalf. Furthermore, as used herein, when a component is referred to asbeing “on” another component, it can be directly on the other componentor components may also be present therebetween. Moreover, when acomponent is component is referred to as being “coupled” to anothercomponent, it can be directly attached to the other component orintervening components may be present therebetween.

What is claimed is:
 1. A penetration fitting assembly configured to forma seal around a pipe or conduit and a wall of a sump through which thepipe or conduit passes, the penetration fitting assembly comprising: apipe gasket comprising an opening configured to accommodate the pipe orconduit; an inner ring assembly configured to surround the pipe gasket,the inner ring assembly comprising a first inner ring part and a secondinner ring part; a ring gasket assembly configured to surround the innerring assembly, the ring gasket assembly comprising a first ring gasketpart and a second ring gasket part; a wall gasket; and an outer ringassembly configured to surround the ring gasket assembly, the outer ringassembly comprising a first outer ring part and a second outer ringpart, wherein, when the penetration fitting assembly is installed, thewall gasket is compressed against the wall of the sump, the ring gasketassembly is compressed between the inner ring assembly and the outerring assembly, and the pipe gasket is compressed against the pipe orconduit.
 2. The penetration fitting assembly of claim 1, wherein each ofthe first inner ring part and the second inner ring part comprises: asemi-cylindrical sidewall; a first semi-circular cap plate proximate toa rear end of the semi-cylindrical sidewall; a second semi-circular capplate proximate to a front end of the semi-cylindrical sidewall; and achannel defined between the first semi-circular cap plate and secondsemi-circular cap plate configured to accommodate a portion of the pipegasket.
 3. The penetration fitting assembly of claim 2, wherein: thechannel of each of the first inner ring part and the second inner ringpart is tapered, the pipe gasket comprises a first rib and a second ribopposite the first rib, and the channel of the first inner ring part isconfigured to accommodate the first rib and the channel of the secondinner ring part is configured to accommodate the second rib.
 4. Thepenetration fitting assembly of claim 3, wherein each of the first ringgasket part and the second ring gasket part comprises: a semi-annularportion; a first flange extending radially outward from a first end ofthe semi-annular portion; and a second flange extending radially outwardfrom a second end of the semi-annular portion.
 5. The penetrationfitting assembly of claim 4, wherein each of the first ring gasket partand the second ring gasket part further comprises: a semi-annularprojection at an inner surface of the semi-annular portion; and asemi-annular recess at an outer surface of the semi-annular portion. 6.The penetration fitting assembly of claim 5, wherein: each of the firstinner ring part and the second inner ring part comprises a semi-annulargroove in an outer surface of the semi-cylindrical sidewall, each of thefirst ring gasket part and the second ring gasket part comprises asemi-annular projection extending radially inward from the innersurface, and the semi-annular groove of the first and second inner ringparts is configured to accommodate the semi-annular projection of thefirst and second ring gasket parts.
 7. The penetration fitting assemblyof claim 6, wherein each of the first outer ring part and the secondouter ring part comprises a semi-annular projection extending radiallyinward, and wherein the semi-annular recess of the first and second ringgasket parts is configured to accommodate the semi-annular projection ofthe first and second outer ring parts.
 8. The penetration fittingassembly of claim 7, wherein each of the first and second ring gasketparts comprises projections on outer surfaces of the first and secondflanges, and wherein opposite ends of each of the first and second outerring parts comprises notches configured to accommodate the projections.9. The penetration fitting assembly of claim 1, wherein the wall gasketcomprises: a split ring comprising a front surface configured to facetoward the wall of the sump and a rear surface configured to face awayfrom the wall of the sump; a plurality of openings circumferentiallyarranged in the split ring; an outer annular lip on the rear surface,and an inner annular lip on the rear surface, wherein the plurality ofopenings are between the outer annular lip and the inner annular lip.10. The penetration fitting assembly of claim 9, wherein each of thefirst and second outer ring parts comprises a front surface configuredto face toward the wall of the sump and a rear surface configured toface away from the wall of the sump, and wherein the front surface ofeach of the first and second outer ring parts comprises a semi-annulargroove configured to accommodate a portion of the outer annular lip ofthe wall gasket.
 11. The penetration fitting assembly of claim 10,wherein each of the first and second inner ring parts comprises a frontsurface configured to face toward the wall of the sump, and wherein thefront surface of each of the first and second inner ring parts comprisesa semi-annular groove configured to accommodate a portion of the innerannular lip of the wall gasket.
 12. The penetration fitting assembly ofclaim 11, wherein the wall gasket further comprises a plurality of screwseals at the plurality of openings, each screw seal of the plurality ofscrew seals comprising a tapered head at the rear surface of the splitring.
 13. The penetration fitting assembly of claim 12, wherein each ofthe first and second outer ring parts comprises a plurality ofcounterbores extending from the front surface to the rear surfaceconfigured to accommodate fasteners securing the outer ring assembly tothe wall of the sump.
 14. The penetration fitting assembly of claim 13,wherein each counterbore of the plurality of counterbores comprises afirst relatively wider portion at the rear surface, a second relativelywider portion at the front surface, a relatively narrower portionbetween the first relatively wider portion and the second relativelywider portion, and a taper connecting the second relatively widerportion to the relatively narrower portion, and wherein the secondrelatively wider portion and the taper of each of the plurality ofcounterbores is configured to accommodate the tapered head of each ofthe plurality of screw seals.
 15. The penetration fitting assembly ofclaim 1, further comprising an adapter wall gasket, the adapter wallgasket comprising a curved front surface configured to face toward thewall of the sump.
 16. A method of installing the penetration fittingassembly of claim 1, the method comprising: installing the wall gasketto the wall of the sump; forming an opening in the inner ring assemblyto accommodate the pipe gasket; installing the pipe gasket around thepipe or conduit; installing the first inner ring part and the secondinner ring part around the pipe gasket such that the pipe gasket isaccommodated in the opening; installing the first ring gasket part andthe second ring gasket part of the ring gasket assembly around the ofthe inner ring assembly; installing the first outer ring part and thesecond outer ring part of the outer ring assembly around the ring gasketassembly; and securing the first outer ring part and the second outerring part to the wall of the sump.
 17. The method of claim 16, whereinthe forming the opening in the inner ring assembly comprises: couplingthe first inner ring part to the second inner ring part with adisposable spacer; and cutting the opening along a joint between thefirst inner ring part and the second inner ring part and through thedisposable spacer.